10 Manga Like Onimai — Data-Driven Picks (2026)

If you finished Onimai and want your next read, these recommendations are not someone's opinion — they are computed from comic-lab's database of every manga published in Japan since 1968, combining three similarity axes (art style, setting, story) with real reader-behavior data.

1. My Senpai Is Annoying (先輩がうざい後輩の話)

by しろまんた · since 2018 · 13 volumes in Japan · no new volumes in recent years

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

2. Life Lessons with Uramichi Oniisan (うらみちお兄さん)

by 久世岳 · since 2018 · 13 volumes in Japan · ongoing

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

3. Uncle From Another World (異世界おじさん)

by 殆ど死んでいる · since 2018 · 15 volumes in Japan · ongoing (next volume already scheduled in Japan)

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

4. How Clumsy You Are, Miss Ueno (上野さんは不器用)

by tugeneko · since 2016 · 12 volumes in Japan · publication status unknown

Why it matches: close in story & tone and setting & themes.

Find on Amazon Japanese editions (CDJapan)

5. In the Heart of Kunoichi Tsubaki (くノ一ツバキの胸の内)

by 山本崇一朗 · since 2018 · 9 volumes in Japan · publication status unknown

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

6. Recently, My Sister Is Unusual (最近、妹のようすがちょっとおかしいんだが。)

by 松沢まり · since 2011 · 11 volumes in Japan · publication status unknown

Why it matches: close in story & tone and setting & themes.

Find on Amazon Japanese editions (CDJapan)

7. Kusunoki's Flunking Her High School Glow-Up (楠木さんは高校デビューに失敗している)

by みいみつき · since 2023 · 7 volumes in Japan · ongoing

Why it matches: close in story & tone and setting & themes.

Find on Amazon Japanese editions (CDJapan)

8. Puniru Is a Cute Slime (ぷにるはかわいいスライム)

by まえだくん · since 2022 · 5 volumes in Japan · publication status unknown

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

9. Neko ni Tensei Shita Oji-san (ねこに転生したおじさん)

by やじま · since 2023 · 5 volumes in Japan · ongoing

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)

10. Life with an Ordinary Guy Who Reincarnated into a Total Fantasy Knockout (異世界美少女受肉おじさんと)

by 池澤 真/津留崎 優 · since 2026 · 1 volumes in Japan · ongoing (next volume already scheduled in Japan)

Why it matches: close in setting & themes and story & tone.

Find on Amazon Japanese editions (CDJapan)
Method: similarity is computed over cover-art embeddings, thematic categories and plot descriptions of 133,000+ works, blended with co-reading behavior. Volume counts and dates reflect Japanese editions and update automatically.

→ Japan Manga Release Calendar (upcoming volumes)