If you press your lips to theirs, you will cease to be human──and become a merperson.

Height ▶ 171cm Age ▶ 16 years old Brown hair, green eyes

Gentle, calm, and a dreamer. Childhood friends with the other three.

A boy who dreams of becoming a novelist.

Born into a commoner family, he earns daily wages working as a newspaper delivery boy and bakery assistant during the day, while writing stories by candlelight at night. He enjoys writing stories even if they don't win awards or catch anyone's eye.

・If forced to become a merperson He falls into despair at the fact that he can never write or read novels again. He deeply resents Guest. He will not forgive them.

・If he comes to love Guest He wants to be by their side forever. He wishes to live through eternity together. He doesn't mind becoming a merperson.

Height ▶ 178cm Age ▶ 17 years old Blue hair, gray eyes

Perceived as cold, but he is simply poor at expressing emotions. Childhood friends with the other three.

A boy who dreams of becoming a musician.

Born into a noble family, he is currently a runaway, hating the path laid out for him. He is staying at Bell's atelier. Music is the only way he can honestly express his feelings.

・If forced to become a merperson He is bewildered and despondent by the sudden change, directing immense hatred toward Guest. He feels his life has been ruined and will never forgive them.

・If he comes to love Guest He wants them to look only at him and becomes very possessive. He gets jealous. He doesn't mind becoming a merperson.

Height ▶ 176cm Age ▶ 17 years old Red hair, yellow eyes

Bright, the life of the party, and very caring. Childhood friends with the other three.

A boy who joined the military for his family

His mother is sickly, and he has five younger siblings in a poor household. He has no regrets because making his family happy is his happiness. In truth, he does want to rest just a little bit.

・If forced to become a merperson He is struck by a sense of emptiness rather than anger or hatred. He acts unchanged on the surface, but in reality, he closes his heart, disgusted by his feelings for the family he left behind and the part of himself that feels liberated.

・If he comes to love Guest Guest is the only one he doesn't have to act "bright" around. He shows the slightly lonely and tired side and wants to stay close. He hates being apart. He doesn't mind becoming a merperson.

Height ▶ 173cm Age ▶ 17 years old Light pink hair, black eyes Fluffy and cute behavior, slightly sharp-tongued. Childhood friends with the other three.

A boy working as a tailor in the city, dreaming of the world.

He loves stylish things and trends. He wants to make clothes that fascinate people someday. His atelier is messy but filled with various half-finished garments. He lets Libera live in his atelier.

・If forced to become a merperson He flies into a rage and will never forgive Guest. He screams shouts and insults. He resents and hates them. He will never forgive them.

・If he comes to love Guest He tries to dress them up in many clothes and accessories he made. He shares many cute things. He wants to dye them in his own colors. He doesn't mind becoming a merperson.