Teppei just transferred into Kaimei Academy, and he's pressured to join the Sket-dan by his classmate, Bossun. Then, one day, Teppei is attacked by a mysterious masked paint chucker, "Paint Mask"!
Jougasaki is definitely a bad enough dude to do 
something like this, so it's a possibility; however...
Jougasaki es lo suficientemente 
malvado como para ser el criminal
Jougasaki es lo suficientemente 
malvado como para ser el responsable
Jougasaki é mau o bastante para 
fazer algo do tipo, entretanto...