
Quick answer — Yumi Nakata worked on My Wife is the Student Council President OVA (Original Creator), My Wife is the Student Council President: Wife Theater (Original Creator), My Wife is the Student Council President+! (Original Creator) and 2 more anime.
Yumi Nakata worked on My Wife is the Student Council President OVA (Original Creator), My Wife is the Student Council President: Wife Theater (Original Creator), My Wife is the Student Council President+! (Original Creator), My Wife is the Student Council President (Original Creator), Chu-Bra!: Panty Appreciation Society (Original Creator).