Ane Kyun! Joshi ga Ie ni Kita!, 姉キュン! ~女子が家に来た!~, Sinful Sis, 누나 두근! ~여자가 집에왔다!~, Волнительная сестра!
Ane Kyun! Joshi ga Ie ni Kita!

When Honoka finds Hirokazu studying with Akasaki, playful jealousy sparks between siblings, their teasing tension simmering beneath polite exchanges. As Akasaki watches, Hirokazu tempts Honoka with shared snacks, his fingers lingering against hers—innocent touches that ignite secret glances. Alone, their forbidden embrace deepens, lips meeting in hungry desire, bodies pressed close as passion overrides restraint. Through whispered apologies and heated caresses, their bond reignites, proving some connections defy explanation.