Suggest cage, kidnapped, locked up, shit like that

Unlock the Comfortable Confinement-Mc is kidnapped by Ml because ml want revenge for something the Mc did to him in there childhood, it's a cute story overall mc is a freak tho

All these stories below are the captives love the confinement:

https://www.mangago.me/read-manga/please_confine_me/

https://www.mangago.me/read-manga/secretary_jin_s_confinement_diary/