[Kaze ga Tsuyoku Fuiteiru](https://myanimelist.net/anime/37965/Kaze_ga_Tsuyoku_Fuiteiru)
Denoise and... that's it. A more dedicated encoder would do scene-filtered debanding and QTGMC deshimmering, and would probably also do something to the lineart (I'd go with a fairly destructive AA option if I had the balls).
Eps. 22 and 23 in the publicly available BDMV are corrupted. There are patches on U2. EDIT: And on the nyaa torrent, now.