ONIMAI: I'm Now Your Sister! — CineAtlas
CineAtlas
  • Home
  • Movies
  • TV Shows
  • Anime
  • K-Drama
  • Series
  • List
Ctrl K
Surprise Me
Join TelegramJoin Telegram
ONIMAI: I'm Now Your Sister!
Anime

ONIMAI: I'm Now Your Sister!

お兄ちゃんはおしまい！

12 Episodes•Top Ranked

When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.

Watch Episode 1

Episodes (12)

Episode1Episode2Episode3Episode4Episode5Episode6Episode7Episode8Episode9Episode10Episode11Episode12

Recommended Anime

The Dangers in My Heart

8.6

School Rumble

7.5

Daily Lives of High School Boys

8

The Disappearance of Nagato Yuki-chan

8

Shikimori's Not Just a Cutie

7.7

Maison Ikkoku

7.7

Non Non Biyori

7.9

Hana-Kimi

7.9

Alya Sometimes Hides Her Feelings in Russian

8.1

Wasteful Days of High School Girls

7.7

Himouto! Umaru-chan

8.2

The Kawai Complex Guide to Manors and Hostel Behavior

6.7

CineAtlas

Your entertainment destination for movies, TV shows, anime & K-dramas.

Explore

  • Home
  • Trending
  • Movies
  • TV Shows

Categories

  • Movies
  • TV Shows
  • Anime
  • K-Drama
  • Series

Information

  • About
  • Settings
  • Disclaimer
  • DMCA / Legal

Content & Aggregation Notice

CineAtlas operates strictly as a content discovery and media aggregation interface. CineAtlas does not host, store, or transmit media files on its own infrastructure. All content availability and video playback streams are provided by independent third-party services.

Third-party ContentMedia IndexerRead full disclaimer
© 2026 CineAtlas. All rights reserved.
Built for entertainment discovery
Privacy•Terms•Disclaimer•Legal