Apologize for Your Mistakes?

Creeaaakk!!

A dull sound rose, and Wandering Know-it-all's door opened loudly. 

At that moment, Dream Clouds and the others practically had their gazes fixed at the same time on the door crack that was gradually widening. They still looked very aggressive when they saw that familiar face that terrified and angered them. 

That person stood behind the door without moving, and as the door opened, he slowly looked up, and a bone-chilling cold glare shot out of his eyes. 

When the five people's eyes met that person's gaze, they felt as if they had been electrified. A cold basin of water poured over their heads, and the imposing mannerism they had in wanting to condemn Happy of his actions instantly disappeared by a large degree. 

This brutal person drenched an entire Class One Hall branch in blood, but his eyes were still so fierce. Could it be that he intended to fight in the city?