Anime: Little Busters! Refrain [リトルバスターズ! ～Refrain～] (Ep. 6)
Track: Mr. FijiWiji & Tülpa - Sentient

Nico Nico: http://www.nicovideo.jp/watch/sm22419080

Disclaimer: I do not own anything in this video. "Little Busters! Refrain" is owned by Key and J.C.Staff, "Sentient" is owned by Mr FijiWiji, Tülpa and Monstercat. Tumblr: http://chaosspritemusic.tumblr.com/