Kiraware Ace no Suuki na Koiji

is a Japanese light novel series written by Yu Tanabe, with illustrations by Fumio Akami. The series began publication on September 10, 2017 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
There are fifty people.

As a result of remaining until the final match in the Koshien qualifying round the previous year, the number of female managers at Hojo Yakata High School has increased explosively.

Mamoru Oshii, commonly known as "Hateful Ace," who was a class A war criminal who lost the final and is now a male man, tries to pay all fifty people in advance, but there is only one strong man left.

Rin Hasoo. At first glance, she is a beautiful girl who is a young lady with a deep window, but she is bullish, irreverent and Yuigadokuson. And it seems that there is something to do with the past, and it seems strange.

Along with Rin, Kazuki will struggle to lead the team to Koshien !?

A refreshing story of laughter and excitement woven by a strange beautiful girl with "disliked ace"!