Responses
https://www.mangago.me/read-manga/semantic_error/
https://www.mangago.me/read-manga/nerd_project/
https://www.mangago.me/read-manga/behind_the_scenes_monologue/
https://www.mangago.me/read-manga/dangerous_convenience_store/
and many more lol, i've got some more but maybe my recs not into your liking

I want a story that have a long flirting period like im sick of one sided love or " met you a long time ago" thing , u know? I want like i like him, he like me. We flirt a bit then date kinda stuff. Just want tension