Sweet Punishment: I'm the Guard's Personal Pet - Animanga Wiki
Я — личный питомец надсмотрщика - Кинопоиск amai choubatsu watashi wa kanshu senyou pet phan 2
For fans asking about "Amai Choubatsu Watashi wa Kanshu Senyou Pet Phan 2," the official answer is that The short anime, which aired in 2018, remains a complete, albeit short, adaptation of the manga's beginning. Sweet Punishment: I'm the Guard's Personal Pet -
Elegant, hyper-intelligent, controlling, and fiercely possessive of Hina. The Innocent Inmate which aired in 2018