Sutou, Iku

須藤育

Iku Sutou is a first-year student at Ohananomitsu High School in Class 1-3, a member of the school's baseball club, and Aijou Rentarou's ninth girlfriend.
Iku is the sole remaining member of the Girls' Baseball Team. The squad was once full, but the other eight members left for America to study baseball, abandoning Iku. She kept her spot in the club until it faced disbandment, after which she tirelessly recruited new members without success.
Iku is also extremely masochistic, training for hours until her body is in agony so she can enjoy the pain.
Despite her masochism, Iku has a high pain tolerance. She can train for hours on end, even going so far as to train all night until school starts the next day. She is able to perform over 101,000 bat swings without collapsing.
Name/Birthday Pun Explanation:
Iku's full name resembles the Japanese pronunciation of the word "stoic" (sutoikku), referring to her high pain threshold.
Iku's birthday is January 9th. This is a Goroawase (wordplay) on her name I(1)ku(9).