__Height__: 148 cm  

Has a large crush on Otani.  ~!She is biologically male and states that God placed her in the wrong body. Prefers to be called Seiko instead of Seishiro because it sounds more feminine. Gave Otani his first kiss, but he later found out she was physically male when she took off her shirt when tending to his injury in the school infirmary. She was afraid that Otani would think she was disgusting, but Otani stated that he didn't think such a thing and they remained friends. !~

Love is unusual for Koizumi Risa and Ootani Atsushi, who are both striving to find their ideal partner in high school—172 cm tall Koizumi is much taller than the average girl, and Ootani is much shorter than the average guy at 156 cm. To add to their plights, their crushes fall in love with each other, leaving Koizumi and Ootani comically flustered and heartbroken. To make matters worse, they're even labeled as a comedy duo by their homeroom teacher due to their personalities and the stark difference in their heights, and their classmates even think of their arguments as sketches. 
 
Lovely★Complex follows Koizumi and Ootani as they encourage each other in finding love and become close friends. Apart from their ridiculous antics, they soon find out an unexpected similarity in their music and fashion tastes. Maybe they possess a chemistry yet unknown, but could love ever bloom between the mismatched pair? 
 
(Source: MAL Rewrite)

**Hobbies:** Computer games, Darts Karaoke

She is currently affiliated with Arts Vision. Non anime roles: Taki in Soul Edge, Soul Calibur and Soul Calibur II

Rather than bow to the inevitable, Risa and Atsushi join forces to pursue their true objects of affection. But will their budding friendship become something more complex?
 
(Source: Viz Media)
 
Note: The chapter count includes the one-shots "Hoshi ni Nattemo Aishiteru" and "Bokura no Ibasho".

Seiko Kotobuki