Quick answer — Tarou Iwasaki worked on Sweetness & Lightning (Director), One Week Friends (Director), The Case Files of Jeweler Richard (Director) and 4 more anime.
Tarou Iwasaki worked on Sweetness & Lightning (Director), One Week Friends (Director), The Case Files of Jeweler Richard (Director), Bibliophile Princess (Director), One Week Friends Kaori no Nikki (Director), Mikagura School Suite (Director), Mebius Dust (Director).
