Kemonokko Tsuushin: The Animation - Nekomusume Nia

Nia, a cat demi-human, is summoned from another world by Negishi. She is puzzled by the sudden change in her surroundings but gradually becomes accustomed to this new world. As they spend time together, their relationship develops in an unexpected direction.

To pass the time, Negishi and Nia decide to play a game with a risqué challenge: whoever reaches climax first loses. The playful competition pushes their boundaries and tests their self-control.