碧木 星利奈

Protagonist in Touri Wataru's story, Serina is the new employee tutor for Wataru, who just entered Fill Flower as a part-timer. Serina is an employee at the flower shop.
A caring and dependable woman, she is actively involved in Fill Flower's business.
She is a little timid when it comes to love.
Serina started working at Fill Flower at the same time as Ginnosuke.