放課後マニア倶楽部 ～濃いの欲しいの～

This game is similar to After School Love Club, it even has the same 12 girls and 3 guys. The main guy this time is one of the girl's brother. Instead of a lover, he wants a pet. He gets that by getting friendly with a girl then take advantage of her weakness for abnormal fun.

[From Li's Fun House]