Midnight Examination Room 3: The Fetishism of Temptation(2003)

Rinko and her friends go to a group date at Kei's invitation, but are disappointed to find themselves surrounded by a group of unattractive men who don't seem likely to be popular with women. However, Michiyo is attracted to Iwabuchi, one of the men, and ends up going to a hotel with him. Afterwards, Rinko and her friends receive an invitation to another group date, this time to a cosplay one.