Is it toxic?
'Timeless Melody'
'Spring snow'(cover picture is of a boy with blue sky background)
'December Rain'
'Murderer Lewellyns Candlelight dinner'
'Faraway Home'
https://www.mangago.zone/read-manga/hinadori_wa_shiokaze_ni_madoromu/ angst but happy ending
Hmmm.... I will say mild toxic . Even if it is it's from MC not ML . So it's interesting. MC isn't the type to sit down and take whatever bullshit seme will come up with . MC is strange one m that's why the story is good and for your information MC and ML aren't related at all ( not even one drop of blood) and they haven't met eachother before their encounter either .
you better read these ho, Ouroboros is too strong so I recommend Starry Sky the best
https://www.mangago.zone/read-manga/swallow_gawee/
https://www.mangago.zone/read-manga/cosmic_boy/
https://www.mangago.zone/read-manga/ouroboros_1/
Something angst