Assaulted! Pervert Mask

Hent*i Kamen, masked defender, protector of the helpless!
Scantily clad and delightfully buff, Kamen is ever tumescent with justice.
Tonight he confronts a trio of thugs causing a ruckus in the dead of night at a boys high school.
"It's Hent*i Kamen! Look!"
His gleaming muscles inspire awe. The trio tremble in fear.
Now, show them how justice tastes, you glorious hero!
But... what happens next is a turn of events he never anticipated...