Hi, can someone recommend me something like semantic error? Like when they hate each other...

mabye nerd project or painter of the night

If you are really looking for enemies to lovers you can check out my list!!!
https://www.mangago.zone/home/mangalist/2863268/

I second for https://www.mangago.zone/read-manga/nerd_project/
Also these:
https://www.mangago.zone/read-manga/pairing_names/

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

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

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

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

https://www.mangago.zone/read-manga/crossing_the_line_1/

Thank u sweeties