Get ready for laughs and heartwarming moments in ONIMAI: I'm Now Your Sister! Mahiro Oyama, a dedicated shut-in NEET obsessed with video games, wakes up one morning to a shocking surprise he's a girl! The culprit? His brilliant but mischievous younger sister, Mihari, who used him as a test subject for her latest experimental drug.
Now forced to navigate the world as a young girl, Mahiro must adapt to a completely new life, filled with frilly dresses, girly friendships, and the constant embarrassment of his situation. Mihari, ever the supportive (and slightly sadistic) sister, is there to "help" him along the way, often with hilarious and chaotic results. This isn't just a gender bender story; it's a heartwarming slice-of-life comedy about family, self-discovery, and the unexpected twists life throws our way. Dive into the fun and follow Mahiro's journey as he learns to embrace his new reality, one awkward and hilarious day at a time!