Responses
Idk is it this one
https://www.mangago.me/read-manga/we_re_gonna_reject_this_stupid_fate/
YESSS OMG, THANK YOU SO MUCH!!! i unfortunately forgot the title when bato got wiped out ┗( T﹏T )┛
It was about the top 2 students in a magic school, the uke was a blue haired top 1 student, while the seme was red/pink haired. They always fought. And I distinctly remember they had to pair up and they had a 99 percent pairing rate. Rivals to lovers, Magic/Fantasy BL is what I would categorize it.