Disgaea 3 School of Devils Manga Volume 2

(W/A/CA) Shin Sasaki. A well-behaved demon is no demon at all! As Mao's stolen 'Hero' title continues to turn him from the schoolyard bad boy into a goody two-shoes, he hatches a new scheme to defeat his overlord Father and rule the Netherworld! But will Evil Academy senior student Salvatore take Mao out before his plans come to fruition?