Responses
This only fits a bit of what your saying sadly bc I’m not too sure about the mother figure part
https://www.mangago.me/read-manga/to_deny_the_route/
beta
mmm.. can I even ask about this? there's certain yaoi/Shounen ai manga that I search desperately.. like it's historical, and your typical Isekai historical and then uh got into academy and stuff. but there's this interesting dynamic of where the mc tried to fill "mother figure" role of the ml. anddd uhhh the ml is kinda yandere ish, your typical with mc acts clingy and with others act differently and rude. and all I could remember is like the ml acts like nagi seishiro from blue lock. (lazy and stuff)