Doki Doki School Hours OVA
Sensei no Ojikan: DOKI DOKI SCHOOL HOURS OVA · せんせいのお時間 DOKI DOKI SCHOOL HOURS OVA
Synopsis
The series is centered on 27-year-old homeroom teacher Mika Suzuki (who only looks about half her age) and the eccentric and colorful students of her class. (Source: Wikipedia)
Studios: J.C.STAFF, Studio Guts, Studio Matrix
Source: MANGA