Toushin Toshi Final by AliceSoft - Adult Sex Game

Custom, a swordsman from a small village, is on a journey when he comes across a carriage being attacked. He defeats the attackers, rescuing the lovely maiden Kumiko. Kumiko was on her way to Toushin Toshi (Combat God City) to search for her father. She suspects her father is in the Combat God Mansion, residence of the annual combat tournament's champion. In order to get in, she needs to partner up with someone who can win the tournament that year, and Custom agrees that she can be his partner. They head to Combat God City to enter the tournament.