Onee-chan wa Game o Suruto Hito ga Kawaru Onee-chan

Synopsis

Toshi, an average high school student, depends on Yu-neesan, a kind, beautiful older sister living nearby. She fills the void left by Toshi's often absent parents, offering nourishing meals and academic support. She's a picture of perfection, balancing her personal life and professional commitments seamlessly. However, Yu-neesan isn't without her eccentricities. The fascinating twist? Her persona transforms dramatically when gaming is involved.

Gaming isn't a mere hobby for her. It's a passionate endeavor that can lead to heightened frustration, unconventional reactions, and even drastic actions! As Yu-neesan's unique gaming alter ego unfolds, Toshi gets entangled in the captivating complexity of her dual nature.