Mizuho Asano

is Keigo Asano's older sister. She also has a crush on Ikkaku Madarame while he and Yumichika Ayasegawa reside in the Asano's family house. She seems to like men with shaved heads. In the anime she is often involving Ikkaku in many comic situations. She is the 24th student body president of her grade at Kuuza Daiichi Highschool and evidently works to handle multiple school affairs, including the local Kendo club. During a kendo tournament she forces Ikkaku to participate, only for it to end before he gets to fight, leading to a non-fatal massacre of both sides. It is believed that she is asleep within the true Karakura Town in its temporary location in Rukongai. It should be noted that Mizuho possesses an exceedingly violent and bossy nature as seen by the way she reacts to even the slightest of comments as well as the treatment of her brother Keigo.

Trivia

 * Mizuho closely resembles Wolfgangina Lalla Getto, the lead female character in Kubo Tite's work Zombie Powder.