|Also Known as||Okiku-nee|
|Class and Year||1-F|
|Physical and Vital Statistics|
|Manga||Volume 1 Chapter 1|
Kikuno Shoukanji es el mejor amigo de la infancia de Souta a quien le gusta ser hermana mayor.
She has an energetic personality, as seen when she jumped on Souta when he was first introduced in the class, but after Souta asked if she got heavier she got depressed immediately.
When it comes to Souta, she is immensely attached to him. She has declared Souta as the boy she likes, which showcases her fixation on him.
She is the childhood best friend of Souta. At some point, they were separated as his family moved away. In the ensuing years, she met and befriended Rin Eiyuuzaki who she told of her association with Souta but was unaware the latter knew him as well. Because she was studying overseas, she missed many days and would have to repeat her first year in the school before she was reunited with Souta. She caught up with him and befriended his new associates Nanami Knight Bladefield and Akane Mahougasawa.