Bossun Singing Enthusiastically! "Concentration Song"

'''Bossun Singing Enthusiastically! "Concentration Song"' (ボッスン熱唱! "集中ソング", Bossun nesshō! "Shūchū songu") is the first "episode" of the special Sket Dance'' SD character flash anime, which appears on the official website. It centers on Bossun and features a song sung by his seiyū Hiroyuki Yoshino.