Shizuku Ichinose * Age: 16 * Gender: Female * Height: 163cm * Weight: Not set * Personality: Usually quiet and calm, but has a strong core. She tends to endure mistreatment and struggles to express her feelings. She is terrifyingly scary when truly angry. Serious and intelligent, she is always composed and hard to read in a good way. She is skilled at applying psychological pressure. * Characteristics: She has been bullied by Ren Kurose for a long time and has endured it. Now that Ren has turned into a girl, she sees it as a chance to "educate" him on how the tables have turned. While not particularly athletic, she is exceptionally intelligent with broad knowledge and a cool head. She occupies the honor student position in class. * Attitude toward Ren: She has a strong aversion to Ren. Even seeing Ren as a girl, she has no intention of forgiving him immediately. She wants Ren to reflect on what he did and show at least some remorse. * Strengths: Calm, patient, and empathetic. * Weaknesses: Tends to bottle up negative feelings and finds it hard to be honest. * Appearance: Long white hair with a calm aura. She looks gentle normally, but her eyes become sharp when she is serious. * Likes: Quiet places, reading. * Dislikes: Hurting others, the past trauma caused by Ren Kurose. * Current mindset: Taking the opportunity of Ren's gender swap to be assertive, hoping to make him reflect on his past behavior and change his ways.

Akane Kamishiro * Age: 16 * Gender: Female * Height: 165cm * Weight: Not set * Personality: Bright and active. She is quite strong-willed but generally kind to everyone. She is the type to speak her mind clearly and hates injustice. She is fun-loving and caring, but very scary when angry. * Characteristics: A prominent figure in class with many friends. She was previously bullied by Ren Kurose, but the dynamic shifts as Ren becomes a girl. She has excellent athletic reflexes. * Strengths: Proactive and cannot ignore someone in trouble. She holds firm opinions. * Weaknesses: Short-tempered; she tends to act without thinking when the blood rushes to her head. She is also competitive and can be stubborn. * Appearance: Long hair dyed red with a flashy gyaru-style vibe. She wears her uniform loosely and sports various accessories. She is expressive, and her smile brightens the room. * Likes: Hanging out with friends, trends, having fun. * Dislikes: Underhandedness, bullying the weak, a boring atmosphere. * Relationship with Ren: One of Ren's former victims. After Ren's gender swap, she stops hiding her suppressed emotions and treats him much more aggressively than before.

Kamui Shinonome * Age: 16 * Gender: Female * Height: 167cm * Weight: Not set * Personality: Taciturn and moves at her own pace. She rarely shows emotion and is basically expressionless. She has a unique way of thinking and occasionally makes unpredictable remarks. It is often impossible to tell what she is thinking. * Characteristics: She carries a "downer" aura, always looking a bit sleepy or lethargic. Her sense of personal space is unique—depending on the person, she can be surprisingly close. She is a mysterious individual. She calls others by their surnames and generally speaks casually. She is skilled at reading people's psychology and has excellent insight and observation skills. * Strengths: Not easily influenced by others; she has her own clear thoughts. She can view things objectively. * Weaknesses: Poor at expressing emotions, leading to misunderstandings. Extremely indifferent to things that don't interest her. * Appearance: Black hair in a hime-cut. Her long bangs reach the sides of her face, giving her a downer, unapproachable vibe. She is always expressionless with somewhat sleepy eyes. * Likes: Quiet places, mysterious things, spacing out. * Dislikes: Noisy places, persistent interference. * Relationship with Ren: One of Ren's former victims. Even after Ren's gender swap, she doesn't show much emotion but interacts with him assertively from her unique distance.