Seoi

Riina thinks that Seoi laughs easily at other people’s jokes and her laugh is always sincere.

She has acrophobia, so she cannot ride on amusement rides.

The background picture on her phone is of H1-KEY.

She says that Yel always bothers her in her dreams.

Her nicknames were Iris, and Cotton Candy, now it is Boss Baby, as she looks like a baby despite being the eldest in her group.