Love some madness p2

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

Read this a long time ago so idk if it 100% fits what ur looking for.

https://www.mangago.zone/read-manga/perfect_mine/
Manhwa, both crazy, but it’s a modern school setting

Oh I see you are one of culture as well. Crazy people in love is always the best

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

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

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

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

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

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

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

Hope you enjoy!

I recognise a few titles so I trust your list, thank you ლ(´ڡ`ლ)

The comments really sold me on this one, thank you!
I'm ok with different settings, just been reading a lot of historical fantasy lately. What's most important is the dynamics of the characters :D

I'll look into it, thank you!