>>53782I'm disgusted you don't know it, it's a classic. But I suppose it is nearly a decade old and by one of my favorite mangaka so I'll help.
It's "Somersault" by Ootsuka Reika.
She does some really well written manga. Her works are heartwarming, funny or both. Unfortunately her non-H works aren't as good, it seems she is better at shorter and more contained stories.
