Incredibly sorry if someone's already posted a link, if so then please redirect me to it. Thankyarrhh.
The song is called "Chatting" ingame, by Sota Fujimori. I absolutely love it, it plays when I'm in Combat Lane & it makes me never want to leave.
If someone can get it for me, I'LL LOVE YOU FOREVERRRR. ^_^ Thankyou! :D