Series
Oniichan wa Oshimai!
お兄ちゃんはおしまい！
Oniichan wa Oshimai! is a Japanese anime series that follows the story of Mahiro Oyama, an ordinary guy who becomes the subject of his little sister Mihari's scientific experiment. This unexpected transformation leads Mahiro on a comedic and challenging journey of self-discovery. The anime explores themes of identity, family, and the humorous consequences of scientific curiosity. Released in 2023, the series has garnered attention for its unique premise and engaging character dynamics.
![TV Anime "Onii-chan wa Oshimai!" Mahiro Oyama [Summer Queens] -Deluxe Edition- 1/8 Complete Figure](/_next/image?url=https%3A%2F%2Fcdn.myfigurelist.com%2Ffigure-images%2F4573480000632%2FTV-Anime-Onii-chan-wa-Oshimai!-Mahiro-Oyama-Summer-Queens-Deluxe-Edition-1-8-Complete-Figure_22cf9fdd-a343-485f-9272-b282c60def6e.jpg&w=640&q=75)
Just added
New Oniichan wa Oshimai! releases
The latest Oniichan wa Oshimai! figures added to the database, with release dates and pre-order status.
![TV Anime "Onii-chan wa Oshimai!" Mahiro Oyama [Summer Queens] -Deluxe Edition- 1/8 Complete Figure](/_next/image?url=https%3A%2F%2Fcdn.myfigurelist.com%2Ffigure-images%2F4573480000632%2FTV-Anime-Onii-chan-wa-Oshimai!-Mahiro-Oyama-Summer-Queens-Deluxe-Edition-1-8-Complete-Figure_22cf9fdd-a343-485f-9272-b282c60def6e.jpg&w=3840&q=75)
Release calendar
Upcoming Oniichan wa Oshimai! releases
Every Oniichan wa Oshimai! figure by release month. Pick a month to see exact ship dates and open pre-orders.
Cast
Characters
All 3 Oniichan wa Oshimai! characters, ranked by figure count.
Good to know
Oniichan wa Oshimai! figures: quick answers
MyFigureList tracks 3 Oniichan wa Oshimai! figures with live prices from 10 shops: trending picks, new releases, today's deals and the full price history of every figure.
What is the most popular Oniichan wa Oshimai! figure right now?
Nendoroid Onii-chan wa Oshimai! Mihari Oyama is the most popular Oniichan wa Oshimai! figure of all time on MyFigureList, ranked by total collector likes, wishlists and views.
How much does a Oniichan wa Oshimai! figure cost?
Most Oniichan wa Oshimai! figures cost between ¥7,380 and ¥7,380, with a median of ¥7,380. Among the Oniichan wa Oshimai! figures with an in-stock price, 0% cost under ¥3,000, 0% ¥3,000 to ¥5,000, 67% ¥5,000 to ¥10,000, 0% ¥10,000 to ¥15,000, 33% ¥15,000 to ¥25,000, and 0% above ¥25,000. Prices are compared live across every shop that stocks them and refreshed every 10 minutes; every figure page shows the full price history.
Where can I buy Oniichan wa Oshimai! figures at the best price?
MyFigureList compares live Oniichan wa Oshimai! prices across 10 shops and refreshes deals every 10 minutes, so the best current offer is always one click away.
When do new Oniichan wa Oshimai! figures release?
New Oniichan wa Oshimai! figures are announced and released all year round. The newest entries appear on this page as soon as they hit the database, including items still open for pre-order.
What are the best Oniichan wa Oshimai! figures in 2026?
The recent Oniichan wa Oshimai! figures collectors are rating highest are Nendoroid Onii-chan wa Oshimai! Mihari Oyama, ranked by the likes, wishlists and views on this year's releases. New figures and pre-orders join every month; the Top 100 keeps the full all-time ranking.
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