Tsubomi Okuwaka  

, 奥若 蕾

Tsubomi is a student at St. Spica High School who exhibits mature behavior for her age. Her strong personality has the ability to intimidate senior students. Despite denying it, there are hints that she may have feelings towards Hikari beyond admiration. She often corrects and lectures both Hikari and Yaya when they make mistakes in school work or responsibilities. Tsubomi is a member of the St. Spica Choir, where it's believed her interest was sparked by Hikari. There are subtle indications that she may develop an interest in Yaya later on in the series. Tsubomi can become easily flustered and outspoken, expressing strong opinions about others.