Yarizui, Sen

槍水仙

Sen has red eyes and silver hair, which she typically styles so the sides stand out more. She is usually dressed in her school uniform, even during bento brawls, along with black boots.
A second-year student and president of the Half Priced Food Lovers Club, her skill in bento brawls has earned her the title The Ice Witch. This nickname originated when she almost bought a beer called Ice Cold (Hyouketsu) because she liked the design and assumed it was a regular drink. Although usually calm, she is very innocent and knows little outside of bento brawls, sometimes appearing quite clumsy. She can also be very stubborn, particularly when facing a challenge from another bento brawler.
Aside from bento brawling, she seems to enjoy reading magazines, keeping several in her room. However, she reads aloud in a monotonous tone. She also has experience with knitting, having sewn Yō's pants back together. She is exceptional at board games, winning several times in a row against Yo and Hana, though she is rather poor at video games, to the point where she gets angry enough at her losses to throw Yo's console out the window.
She gets along nicely with everyone except those who disrespect bento brawls. The most notable relationship is with Satou Yoh, whom she initially treats as a mere disciple and underclassman, but she eventually begins to trust him to the point where he becomes one of her closest friends.