"Tell me why we're all gluttons for pain.
The girl is totally insane.
She doesn't know the meaning of tame,
Still I can't put out the flame.
Hey, hey, I wanna play on the team that you despise.
Every day a new disguise,
Every night a Halloween.
She says keep the motor runnin' man,
Like I was some machine."
- Diggin' your Scene; Smash Mouth.
The life in Ponc-tan was too boring for Misaki. Too stiff and worried about the gods.
So, logically, she went to go bother the Oina. All the boys were so easy to tease. So very easy.
And of course, she latched to Nero specifically, since he already had a bunch of people teasing him, making it all the easier.