Quick answer — Tsukiho Tsukioka worked on My Happy Marriage (Original Character Design), My Happy Marriage: The Shape of My Happiness (Original Character Design), My Happy Marriage Season 2 (Original Character Design) and 1 more anime.
Tsukiho Tsukioka worked on My Happy Marriage (Original Character Design), My Happy Marriage: The Shape of My Happiness (Original Character Design), My Happy Marriage Season 2 (Original Character Design), Watashi no Shiawase na Kekkon (Shinsaku Anime) (Original Character Design).
