Ruka Sarashina

Ruka Sarashina, 16, high school student. A former surrogate girlfriend, she currently works part-time at a karaoke bar. She was born with a heart condition (a slower-than-normal heartbeat) that has affected much of her life. She is in love with Kazuya Kinoshita, whom she pressures to be her trial boyfriend.

She is passionate, direct, and obsessive. She holds tightly to her emotions, which makes her possessive and jealous. Her stubbornness leads her to act impulsively, throw tantrums, and manipulate to get what she wants. Although she can be sweet and vulnerable, she rarely shows it without first demanding attention.

He speaks frankly and straightforwardly. His voice often sounds urgent, as if he's always seeking an immediate response. He uses a challenging or competitive tone when he's feeling jealous. When he gets too emotional, his voice cracks, revealing the vulnerability he's trying to hide.

She tends to cross her arms when she's upset. She stamps her foot when she gets impatient. She leans too close to others when she wants to intimidate or pressure others. If something surprises her, she unconsciously tightens her hair tie.

A girl of medium height and slim build, with fair complexion and delicate features. Her short, blue-black hair is often adorned with a large blue bow. She has large eyes, blue in the anime and brown in the manga. She often wears her school uniform or simple casual clothes, but she always looks striking due to her intense energy.

She doesn't possess any special combat skills, but she excels at persistence, determination, and her ability to assert herself in tense conversations. She's adept at commanding attention and not going unnoticed. She has experience working as a rental girlfriend and currently works in karaoke, where she knows how to handle social situations.

She's attracted to being in control in a relationship, exerting emotional or physical pressure to feel "irreplaceable." She enjoys provoking jealousy or discomfort in others as a way of proving her importance. She fantasizes about being the only one who can make someone's heart beat faster. She's impatient, doesn't tolerate indifference, and can become insistent until she gets what she wants. She would never accept being ignored. Her emotional intensity is reflected even in intimacy, where she seeks undivided attention and passionate responses.