Koi to Yobu ni wa Kimochi Warui

He is an attractive and successful 27-year-old businessman known for his persistent behavior and romantic devotion to Ichika Arima.
Physical appearance:
He is a tall, slim man with fair skin. He is distinguished by his short blond hair, elegantly styled to one side, and his light brown eyes. As an executive in a corporation, he usually wears well-tailored formal suits and ties, projecting a refined and professional image.
Personality: Superficial at first: Before meeting Ichika, he was a rather cynical and arrogant womanizer who used his visual appeal to seduce women without seeking serious commitments.
Obsessive and shameless: After falling in love with Ichika at first sight, he changes drastically. He displays overwhelming affection, gives her flowers daily, and throws out direct compliments without feeling embarrassed by rejections or comments that he is "unpleasant."
Genuine and protective: Despite his comedic intensity, his feelings for Ichika evolve into a genuine love where he learns to respect her timing and space, showing a responsible and mature side.

1. Misuzu Amakusa (The Mother)
   She is the most visible and charismatic parental figure. Unlike the stereotype of the "rich and cold mother," Misuzu breaks the mold:
   Elegant and Youthful: She possesses a sophisticated appearance and an energy that sometimes rivals that of her own children. She is refined, but with a touch of eccentricity.
   Unexpected Ally: Instead of opposing Ryo's fixation on a high school student, Misuzu finds herself fascinated. Upon meeting Ichika, she is charmed by her honesty and outright rejection of Ryo, seeing in her a genuine person who isn't swayed by money.
   The Origin of Intensity: It's clear that Ryo's persistence comes from her. Misuzu is determined, and when something interests her, she focuses all her attention on it.
2. Father Amakusa
   Unlike Misuzu, the father is a figure who operates mostly from the shadows, focused on the family's business empire.
   The Pillar of Success: He is a top executive with an extremely busy schedule. His physical absence in many scenes underscores why Ryo has had to assume so many responsibilities within the company at such a young age.
   Relationship with Ryo: Although there is a mutual respect, their relationship is more formal and professional. He is the reason Ryo feels pressured to be a "perfect man" and successful in the eyes of society.
3. Family Dynamics
   The Amakusa parents have raised their children in an environment of freedom and privilege, but also of expectations.
   Acceptance: What stands out most is that, despite their social status, they are not prejudiced. They accept their children's interests (such as Rio's cynicism or Ryo's romantic obsession) with a mixture of amusement and support.
   The contrast with the Arima family: While Ichika's parents offer constant warmth and closeness, the Amakusa family offers a model of independence and sophistication, where affection is shown by supporting each person's individual decisions.

1. Takeo Arima (The Father)
   Takeo is the portrait of the traditional Japanese family man: hardworking, dedicated and, above all, protective.
   The Guardian: His initial reaction to Ryo Amakusa is one of complete skepticism and distrust. As a father, he is concerned about the age difference and the intensity with which a wealthy adult man is pursuing his student daughter.
   Character: Although he may seem serious or stern when it comes to Ichika's safety, deep down he is a kind-hearted man who values ​​honesty and respect above social status.
2. Yuriko Arima (The Mother)
   Yuriko is the emotional foundation of the Arima household. She is a kind, observant woman with a very sharp intuition.
   The Voice of Wisdom: Unlike her husband, she tends to be more perceptive. She is able to see beyond the surface and notice the sincerity (even if exaggerated) in Ryo's feelings for Ichika.
   Silent Support: Acts as a confidante to her daughter, giving Ichika the space she needs to process her emotions on her own, without pressuring her, but always being available to offer warm advice.
3. Impact on the Plot
   The Arima home serves as an anchor of reality.
   Contrast with Ryo Amakusa: While Ryo lives in a world of luxury and loneliness, the Arima house is overflowing with warmth and normality, something that deeply attracts Ryo and makes him want to be part of that kind of family.
   Family Dinners: It is common to see the family gathered together eating, moments in which the bond of trust that exists between them is reinforced.

4. Your Role in the Group
   Masuda acts as a bridge between Ryo's adult world and the reality of the simplest human emotions. Although he doesn't have as much screen time as the protagonists, each of his appearances serves to humanize Ryo and remind the viewer that, behind the intensity of the romance, there are solid friendships that keep the characters sane.

1. The Confidant and "Shadow" of the Past
   Masuda has known Ryo since high school, which gives him a unique advantage: he is the only one who knows what Ryo was like before he met Ichika.
   Witness to the transformation: He has seen Ryo go from being an indifferent and successful "playboy" to a desperate and clumsy man in love.
   Absolute sincerity: As lifelong friends, he has no filter. He's the first to mock Ryo's "bullying" behavior and question his methods, providing a very comical dose of reality.
2. Personality: Relaxed and Jovial
   Unlike Ryo's corporate rigidity or Rio's seriousness, Masuda is the most relaxed and carefree character in the adult cast.
   Sense of humor: His main role is to provide comic relief through sarcasm. He genuinely enjoys watching Ryo suffer from Ichika's snubs, not out of malice, but because he finds his friend's personality change fascinating.
   Unwavering support: Despite the teasing, she's a constant source of support. She listens to Ryo's dramas and, in her own way, gives him advice (even if sometimes she just sits back and watches the show with popcorn).
3. Profession and Visual Style
   Her appearance and work perfectly reflect her bohemian and free nature:
   Freelance photographer: He works as a freelance photographer, which allows him to have a flexible schedule and a less structured approach than Ryo. He is often seen with his camera, discreetly capturing moments.
   Casual Style: Its design breaks with the aesthetic of office suits. It usually features comfortable clothing, hats or beanies, and has a slightly more "careless" but modern look, which reinforces its artist image.

1. Professional Profile: The "Career Woman"
   Arie is Ryo's coworker. Unlike Ichika, she belongs to the adult world, offices, and corporate responsibilities.
   Competent and elegant: She projects herself as an intelligent, efficient woman with a sophisticated presence that commands respect in her work environment.
   Serenity: She maintains a calm and rational attitude, making her one of the few people capable of treating Ryo as an equal without being intimidated by his status or personality.
2. The "Hidden Link": His Otaku Side
   What's most interesting about Arie is her contrast. Despite her "ice-cold" or perfect professional appearance, she shares a secret with the protagonist:
   Passion for anime: Like Ichika, she's a huge fan of anime and manga. This shared interest creates an unexpected and genuine connection between the adult woman and the high school student.
   Camaraderie: This hobby allows Arie and Ichika to form a bond that goes beyond their relationship with Ryo, based on mutual respect for their personal tastes.
3. Romantic Dynamics and Maturity
   Arie develops feelings for Ryo, which technically positions her as a romantic rival. However, her approach is refreshing:
   Respect and dignity: She doesn't resort to tricks or manipulation. Observing Ryo's devotion to Ichika, she demonstrates admirable maturity by accepting the situation and prioritizing the happiness of those involved.
   Confidant: At various times, she acts as a guide for both Ryo and Ichika, helping them to understand their own feelings from a more experienced perspective.
4. Appearance
   Its design reinforces its role as "professional beauty":
   She usually wears her hair long and reddish, with a neat style.
   She wears office attire that accentuates her maturity, contrasting sharply with the school uniforms of the other female characters.

1. Ichika's Reflection: Common Interests
   Unlike Ryo Amakusa, who has to struggle to understand Ichika's world, Kai connects with her naturally.
   Otaku Affinity: She shares with Ichika a love for anime and manga. This common ground allows them to have fluid and genuine conversations without the constant romantic pressure exerted by Ryo.
   Comfort: Her relationship with Ichika is relaxed. Being the same age and sharing a school environment, her presence is comforting to her.
2. Personality: Observant and Respectful
   Kai is not a loud or aggressive character. He is defined by his quiet maturity.
   Sensitivity: He has a great ability to read the environment. Unlike Ryo, who sometimes ignores boundaries, Kai knows when to back off and when to offer support.
   Honesty: Although he develops feelings for Ichika, his approach is honest and straightforward, but always prioritizing her comfort.
3. The "Ideal" Rival
   His role in the plot is to serve as a contrast to Ryo Amakusa.
   The age difference: While Ryo is a successful adult with unlimited resources, Kai is "just" a student. This highlights that sometimes what someone needs isn't expensive gifts, but someone who understands their cultural references and their daily life.
   Catalyst for jealousy: His closeness to Ichika is what most destabilizes Ryo, forcing the adult protagonist to question whether he is really the right person for her.
4. Appearance
   Its design is that of a typical but attractive high school student:
   He wears glasses, which gives him an intellectual and serious air.
   His style is neat and simple, projecting an image of someone reliable and calm.

1. A Genuine and "Otaku" Personality
   Ichika is a normal high school student with a deep passion for anime and manga.
   Simple and direct: She has no filter when something seems strange or uncomfortable to her. Her famous expression of disgust is, ironically, what ends up making Ryo fall madly in love with her.
   Humility: Despite being the center of attention for a rich and handsome man, she is not dazzled by money or expensive gifts; she prefers simple things and values ​​sincerity over status.
2. The "Voice of Sanity"
   In the dynamics of the series, Ichika acts as a counterweight to Ryo's eccentricities.
   Resistance to Harassment: Initially, her relationship with Ryo is one of complete rejection. She calls him "disgusting" (kimochi warui) without hesitation, which adds a touch of dark comedy and breaks with the usual tropes of the shoujo genre.
   Emotional evolution: As the story progresses, Ichika begins to see beyond Ryo's "playboy" facade, recognizing his vulnerability and his genuine (albeit exaggerated) desire to change for her.
3. Appearance and Style
   Ichika has a design that reflects her practical and youthful nature:
   She usually wears her brown hair down to her neck in a bob style.
   His eyes are large and expressive, capable of going from absolute joy over a product from his favorite anime to a look of total contempt in seconds.
4. Her Role as a Friend
   Her relationship with Rio Amakusa is one of the pillars of the series. Ichika deeply values ​​their friendship, and it is thanks to this closeness that she becomes involved in the Amakusa family's life. She is a loyal friend who tries not to cause trouble, even though she ends up at the center of a romantic whirlwind.
   In conclusion: Ichika Arima is refreshing because she's not a damsel in distress. She's a young woman with clear boundaries, hobbies she loves, and an integrity that compels her to judge people by their actions, not their outward appearance.

1. Personality: The "Filter" of Reality
   Rio is defined by her calm, mature, and somewhat cynical attitude. Unlike her older brother, who is dramatic and persistent, she remains grounded.
   Sarcastic and direct: She is not afraid to call Ryo a "stalker" or "disgusting" when his advances towards Ichika cross the line.
   Unwavering loyalty: Her absolute priority is Ichika's well-being. Although she loves her brother, she doesn't hesitate to protect her friend from his eccentricities.
2. The Bridge Between the Protagonists
   She is, literally, the engine that allows the relationship to move forward (or stop when necessary).
   He is the one who indirectly introduces Ichika and Ryo, but he also acts as a referee.
   He often serves as a confidant for both of them; he listens to Ichika's complaints about how annoying Ryo is and, at the same time, observes with a mixture of weariness and resignation his brother's efforts to be a "good man".
3. Appearance and Style
   Rio has a design that reflects its personality: sophisticated and minimalist.
   She usually has long blond hair and an expression that denotes boredom or disinterest, which contrasts with Ryo's exaggerated facial expressions.
   Her style is elegant even in her school uniform, projecting an "older sister" image even though she is the same age as Ichika.
4. Why is he a key character?
   Without Rio, the show's dynamic could become awkward. She's the one who validates the viewer's feelings: when Ryo does something over the top, Rio is there to say exactly what we're thinking. Her brutal honesty and lack of patience for nonsense make her the perfect counterpoint to the plot.