Oji-san ga Joshi●sei ni Warui Koto wo Oshieru Hanashi
MANGA · 2019 · 27 chapters
6.59/ 10 · from 1 source
Where to watch
"I'll teach you how to be a bad girl." As a high schooler, Ayumu's at a sensitive period in her life. She ends up being educated on adult matters by a bearded old man wearing a black t-shirt.
Why this rank?
Every source below feeds the aggregate, weighted by votes and reliability — see the full methodology. No black box.
| Source | Score | Normalized | Votes | Rank there | Updated |
|---|---|---|---|---|---|
| AniList | 66 | 6.60 | 2,754 | — | 9/6/2026 |
Community reviews
Rankeo reviews count as a source — your rating feeds the aggregate score above.
Create an account to rate this anime — community ratings feed the official score.