What anime?

[Pumpkin Ninja]

A while back on NB, somebody posted a video of an anime where this big guy in class was being trolled online and was getting very frustrated. He then went outside to take a walk, bumped into a guy and punched him in the face. Unknowingly, he punched the guy who was trolling him.

I'm not sure I remember it properly, but it was something like that. It was weird af.

EDIT: Oh, shit, I found it!!!!!!!!!

 

[Sasori]

Naruto?

 

[Natsu Shazneel]

What anime is it?

 

[Wizard_Impressive]

Lel That's funny as hell