With the Devilish Her

With the Devilish Her is a cohabitation romance simulation game with live2D animation and extensive adult content. You spend three weeks living with Marina, your friend's younger sister, who has recently lost her parents and is staying with you temporarily. The game focuses on gradually deepening your relationship through daily interactions and intimate encounters, with an emphasis on detailed animation and player agency in customizing Marina's appearance through over a million outfit combinations. Gameplay centers on a progression system where Marina's sensitivity increases through foreplay and interaction, leading to increasingly explicit adult scenes with full voice acting in Japanese. The game features 3,140+ animations and over 70 base CGs depicting various sexual scenarios. After completing the main story, an Endless Mode unlocks, allowing continued cohabitation and additional adult content beyond the initial three-week timeframe.