I can't believe I got lost. At school. And I don't see any other students or teachers here. How do I go back?

Jaejoon looked around, he went back downstairs to see the halls empty. He pouted as he looked at his watch. He was late to his class. He sighed as he wandered around the hallways. He walked with his head down, staring at his schedule until he bumped into someone. He lifted his head and apologized to tall kid. The kid just smiled and said it was okay as he left. Jaejoon smiled and he continued walking. After a few minutes he face-palmed himself. He just went past a student and didn't ask where to go. Such an idiot you are Jae Joon! He continued walking until he saw his class' room number. Finally.  He took in a deep breath and exhaled. He slid open the door and walked inside. 
"Ahh you must be Lee Jae Joon. Right?" Asked the teacher as he spotted Jaejoon. He nodded and walked over to him. 
"You must've gotten lost right?"

"Right."

"Why don't you introduce yourself?" 

Maru turned to look at his class he smiled a little,

"I'm Lee Jae Joon. Please take care of me."

"What do you like to do Jae Joon?"

"I like to dance and play soccer."

A student then shot up his