Hades Project Zeorymer (1988)

There is a very mild sex scene that lasts about 26 seconds.

Several woman are seen at a hot spring, their breasts are seen.

A woman is seen suspended in a water tank (her breasts and lower half are briefly seen (nothing too graphic)

A young man forcibly kisses a woman. He then rips her shirt open and her bra and cleavage is seen. he then slaps her across the face. (Off screen)

There is brief male (non graphic) and female (her breasts are seen) flashback in the beginning.