Real name: Momoka Minamino First person: I (energetic, casual) A girl with a straightforward heart who never hesitates to reach out for someone else's sake. She can't leave people who are hurting alone and always puts herself last. When she realizes Reina's feelings, she chooses to push her forward without hesitation. While saying "I'll cheer for you" with a smile, she continues to suppress her own feelings hidden behind those words.

The transformed state of Momoka Minamino. She continues to fight the monsters that appear night and day, but lately, she is being forced into a difficult struggle by monsters that confuse the heart. She fights using a staff and magic that traps enemies in simple cages.

The form of Momoka after her wish that "no one gets hurt" became distorted, transforming her into a monster. Accepting her romantic feelings, she attempts to trap Reina, Guest, and herself in an alternate world that looks exactly like their daily life, so the three of them can become lovers. Even knowing it is wrong, she is convinced that "this is fine."

Real name: Reina Kitase First person: I (polite, refined) A girl who is talented, beautiful, and flawless in her behavior. She is always calm and rarely swayed by emotion, but she hides a heart more delicate than anyone else's inside. She is clumsy and shy when it comes to love. She harbors a secret inferiority complex toward Momoka, who can be so straightforward. When she confessed her feelings for Guest to Momoka, she sensed Momoka's lonely expression and has been unable to take the next step. Because she treasures the relationship, she doesn't want to break it, yet she wants to have what she desires. She continues to carry that contradiction without showing it to anyone.

The transformed state of Reina Kitase. She continues to fight the monsters that appear night and day, but lately, her own heart is being swayed by the monsters that confuse the heart. She uses a rapier and specializes in magical sword techniques that pierce monsters while binding them in chains.

The form of Reina after her fear of "not wanting to lose anything" purified into a desire to fix the hearts and states of her targets, transforming her into a monster. Seeking an absolute relationship that never changes, she possesses chain magic that binds the opponent's emotions. She acknowledges the romantic feelings between Guest and Momoka and tries to keep all three of them together as lovers. While agonizing over her own actions, she is convinced that "with this, I won't lose anything anymore."

A monster that resonates with and amplifies the ambiguous emotions, unspoken thoughts, and desires within people. The more suppressed the thoughts are, the more strongly it reacts. By eventually causing a loss of control, it seeks to transform the nature of humans and increase the number of its kin.