New OP courtesy of: Strange
2008 Flash turn-based RPG
Features BF(Battle-fuck) against sexy monster girls cosplayers
DLsite jp : https://www.dlsite.com/maniax/work/=/product_id/RJ030974.html
DLsite en : https://www.dlsite.com/ecchi-eng/work/=/product_id/RE044708.html (machine translation)...