By Yuji Shiozaki.

Tamako and the entire wrestling club are still in the mountains for their summer training camp. Tamako is facing the 2nd Elite Four named Koumoku--a girl who wears a school uniform swimsuit. Tamako's "battle" is to retrieve Koumoku's key from a raging river. Throughout the battle, though, Tamako finds out that Koumoku is searching for her late father's axe in the river...but the weight of the axe is too much, and Koumoku is about to drown!

For mature readers. Age 18+. English manga graphic novel.