It was a manhwa and basically it went typical delinquent with dyed hair and top student. Ml had grey or blond hair i think not sure. Mc had dark hair and green eyes. It was only like 5 chapters. Ml gives mc a kiss on his forehead and mc gets flustered and says you dont even know my name. I dont remember anything else but its cute and short
Edit; something with name in the title im pretty sure