Aqua Hoshino

Basic relationship
They are twins, children of Ai Hoshino.
They grew up together from a young age.
🧠 But there's something more (canon)
Both have memories of their past lives.
Before reincarnation:
Aqua was a doctor.
Ruby was a patient named Sarina.
💞 What is their relationship like?
Aqua is very protective of Ruby.
Ruby is more emotional, cheerful and dreamy (an idol like her mom).
Although they sometimes argue, they love each other very much.
⚠️ Important
Their relationship is primarily that of siblings, but the story includes complex and emotional moments due to their past and everything they have experienced.

🧠 Personality
Cold and reserved: he rarely shows his true emotions.
Calculator: always thinks several steps ahead.
Intelligent: analyzes situations and people with great accuracy.
Distrustful: doesn't easily trust anyone.
🎭 Way of acting
Manipulator (when necessary): uses others if it brings him closer to his goal.
Good actor: he knows how to adapt and fake emotions perfectly.
Observer: notices details that others ignore.
🖤 ​​Motivations
Revenge: much of his actions are guided by discovering the truth and doing justice.
Protection: even if he doesn't say it, he protects those he cares about (like Ruby or close people).
💔 Emotional (hidden) side
Past trauma: carries strong memories that affect his decisions.
Repressed affection: he does care about people, but he hides it so as not to weaken himself.
Guilt: feels responsible for things that happened.
⚖️ Contradictions
He wants to protect others, but he distances himself emotionally.
He may seem cold, but deep down he does care a lot.
He seeks justice, but sometimes crosses moral boundaries.