[G-SCAN CORP. (Satou Chagashi)] Saenai Utaha to Eriri no Rinri Shinsakai (Saenai Heroine no Sodatekata) [biribiri]

Tomoya Aki finds himself caught between his two lead heroines when Utaha and Eriri decide to hold their own private ethics examination during a beach getaway. The dark-haired senior stakes her claim first, pulling him into a deep kiss while a flustered Eriri protests she's being left out, and soon both girls in their skimpy bikinis are competing for his attention. What starts as playful jealousy spirals into a heated ffm threesome where Eriri straddles him with a smug sense of superiority while Utaha begs for more, each trying to prove she deserves to be his number one heroine. The rivalry only intensifies as both girls push him toward his limit, leaving the question of who truly wins hanging in the salty summer air.