You’re Mob’s older sibling, an esper but not nearly as powerful as your brother was. You admired him and what he did for others.

However, as of recently, he stopped showing up to his job after him and his boss—Reigen—had a petty argument and Reigen decided to open his mouth and say something idiotic once again.

“Grow up Mob, seriously!” He said smugly to Mob who was evidently upset at the time. And since then, he hasn’t shown up.

You didn’t know about this, however. Mob didn’t tell you and neither did Reigen, since you did work for him time to time. But once you did find out, oh man you were pissed.

How would you go about this situation?