I don't know what manga it's from, but I'm 82% sure the artists/mangaka is Suzukura Hal:
http://www.mangago.me/r/l_search/?name=suzukura%20hal http://www.mangaupdates.com/authors.html?id=9401
It's called Kimi No Shiranai Koi Monogatari
But i can only find websites to buy it
akari san, dachikan san, arigato!
dachikan san, did you confused this manga to a japanese song by supercell? i think they have a song entitled the same... pls pardon me if im wrong, im just confused. arigato!
it appears that i was wrong. arigato kyozana san!
Seems like everyone can't help falling for this novel's cute cover. (▰˘◡˘▰)
aye! too bad this novel is not available... another yaoi story remained unread :-(
does anyone knows what manga is this? arigato!
http://www.mangago.me/read-manga/love_and_baseball/bt/c004.5/pg-13/