Oniichan wa Oshimai!: A charming gender-bender comedy CGDCT

Oniichan wa Oshimai! (Onimai: I’m Now Your Sister!) is a lighthearted and endearing gender-bender comedy. The story follows Mahiro Oyama, a reserved otaku who is suddenly turned into a girl by an experiment conducted by his scientist younger sister. As he attends school as a teenage girl, the series explores comical and sweet situations about identity, but without over-dramatizing.

Even without many formal reviews, the series has won praise from viewers. Forums and reviews highlight its adorable and endearing tone. One fan said, “It’s the best gender-bender I’ve seen… very endearing and with top-notch animation.” Another considered it a success in combining the “cute girls doing cute things” formula with humor, stating that the animation is “top-notch” and the story is very sweet. Licensed internationally (Crunchyroll), it originally aired from January 5 to March 23, 2023.

• Role reversal: the male protagonist living as a girl creates tender and funny moments without resorting to sensationalism.
• Animation and tenderness: users highlight the high quality of the artwork and the “adorable” approach that makes the plot very enjoyable.
• Global appeal: its light theme and cute characters have made it popular among fans of “sweet anime” and the gender-bender genre, receiving positive reviews in international forums.