Gomu wo Tsukete to Iimashita yo ne... - E01
In Episode 1 of Gomu o Tsukete to Iimashita yo ne..., the protagonist, dating Mamori, is surprised when her sister Nanami bursts into his apartment. Thanking him for caring for Mamori, Nanami offers herself sexually, leading to intense encounters. Despite her instructions, he crosses boundaries, resulting in a mix of pleasure and chaos, including an accidental mess on her smartphone.
