Can someone please help me

There's this manga I read a year ago during the pandemic, and I wanted to read it again but I forgot the title. I remember some of the plot though. There was this quiet and introverted girl who was always at the top of her grade since elementary, and a boy who was outgoing always came second to her. This frustrates him until everything between them eventually becomes a competition. But over time, being together with her all through elementary, middle school and high school, he eventually falls in love with her, though she is blind to this as she doesn't know what love is. Fast forward to college, and they're still at their old games, of course with the girl still at first and the boy second, the only difference is that the boy is now committed to confessing to her once he beats her at top 1.

I think one of them was named "Kirishima" I don't remember if it was the girl or the boy though. If someone could please help me with this it would be great. Reddit please do your thingggg