
Quick answer — Mankyuu worked on The Ramparts of Ice (Director), Migi&Dali (Director), The Ice Guy and His Cool Female Colleague (Director) and 2 more anime.
Mankyuu worked on The Ramparts of Ice (Director), Migi&Dali (Director), The Ice Guy and His Cool Female Colleague (Director), A Thirty-Year Old's Health and Physical Education (Director), The Ramparts of Ice Season 2 (Director).