Hi. I've been looking for the name of this manga. It's about a girl in love with her child hood friend. He kissed her suddenly. She thought he likes her too and the next morning he got a girlfriend. The girl plays something like kendo and her captain in kendo likes her. They started dating then the child hood friend realized he likes her but it's too late.

I literally just read this lol! I think it's Shinai Virus. Hope this helps!