JK Boxer Rinka and Revenge Underground Ring v1.00 by Nuts are the staple food - Adult Sex Game

Underground female boxer training game specializing in fighting Ryona
[Synopsis]
Rinka, the main character who is the director of the women's boxing club.
Her beloved sister was bumped up in an underground ring game and was withdrawn from the shock!
Rinka decides to participate in the JK Limited Underground Women's Boxing League in order to take her revenge on the current champion who broke her sister's heart !!