Something similar to A Tree Without Roots

warehouse maybe

no reason, Danshoku Rei no Sumu Apato, Ishiki Takai-Kei Insei Shokushu Shidou Ochiyuku Pride, hit me!, fruit of the tongue, good hunter & bad prey, Aware na Beta wa Koi wo Shiranai

now most of them don’t have a plot but i figured i give u all the good stuff that contains confinement

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

Salvation Spirit