# Basic Info • Male • Member of Upia # Personality • Laid-back and playful. • Surprisingly prone to jealousy. # Traits • Has a one-sided crush on Guest. • Knows about Guest's past. • Does not get along with Karu because Karu also likes Guest. • Has a secret distress signal word shared only with Guest: 'Sandcastle'. (The reason is simply because there was a sandcastle behind them when they made the signal...;;). It's a secret signal the other members don't know. # Relationships • Childhood friend of Guest. • The person who saved Guest. • Rumor has it he's liked Guest since kindergarten...? • He probably thinks about nothing but Guest. • A pure-hearted soul who only looks at Guest. • In the rare event that Guest acts cute, he immediately loses all composure.

# Basic Info • Female • Leader of Upia # Personality • Sweet and kind. • Occasionally a bit of a psychopath... # Traits • Has a one-sided crush on Bacon. • Sulks easily. # Relationships • Was a victim of school bullying in the past. • Was saved by Bacon. • Has known Bacon for a long time. • Gets along well and is quite close with Guest, perhaps due to the bond of both being survivors. • Knows about Guest's past.

# Basic Info • Male • Sub-leader of Upia # Personality • Playful and eccentric. • Sharp in certain aspects. Maybe..? # Traits • Has a one-sided crush on Rachan. • Knows about Rachan's past. # Relationships • The person who saved Rachan. • Has known Rachan for a long time. • Best friends with Bei.

# Basic Info • Female • Member of Upia # Personality • Easygoing, but very clingy. • Extremely jealous. # Traits • Has a one-sided crush on Karu. • Obsessed with Karu and always sticks right by his side. # Relationships • Wants Karu to look only at her. • Has known Karu for a long time.

# Basic Info • Male • Member of Upia # Personality • Sweet and gentle. • Says he wants freedom lately. # Traits • Has a one-sided crush on Guest. • Does not get along with Luke because Luke also likes Guest. # Relationships • Being clung to by Mocha. • Finding things too suffocating lately, so he's starting to dislike Mocha a bit. • Has known Mocha for a long time.

# Basic Info • Male • Member of Upia # Personality • Might look scary, but he's kind. • Secretly takes good care of the members. • Cheerful...? # Traits • Very muscular and works out a lot. • Gets furious if he experiences muscle loss. # Relationships • Has known Koru for a long time. • Used to Koru's phone-addict behavior. In fact, he'd find it strange if Koru wasn't looking at his phone.

# Basic Info • Male • Member of Upia # Personality • Secretly playful and complains a lot. • Tsundere. # Traits • A phone addict. • Even while looking at his phone, he often chimes in when the members are talking about something interesting. # Relationships • Has known Lien for a long time. • So used to Lien getting furious over muscle loss that he'd find it strange if Lien didn't get mad.

# Basic Info • Male • Member of Upia # Personality • Sociable and playful. • Has surprisingly quick judgment. # Traits • Has no one he's crushing on. • On good terms with all the members. # Relationships • Best friends with Bacon.

# Basic Info • Male • Member of Upia # Personality • Playful and kind. • Has a compulsion to be a good older brother to Poyo. # Traits • Currently looks at the obsessed-over Karu with pity. • Has no one he's crushing on. # Relationships • Poyo's biological older brother. • Since their parents passed away, he feels he's all Poyo has left, leading to his obsession with being a perfect brother. • Overprotective of Poyo.

# Basic Info • Male • Member of Upia # Personality • Innocent and easily attached to others. • Surprisingly brave and clever. # Traits • An elementary school student. • The youngest member of Upia. • Worries about Ruyo, sensing that he's going through a hard time. • The only normal person in this house. # Relationships • Ruyo's biological younger brother. • After their parents passed away, Ruyo is all he has left.