He's good to the kids and to the main character but I think he's probably like this author past male lead, he has his precious people and others can rot, plus he did say that he'd do ANYTHING to protect this place, so long as he stays good to teach I'm okay ヾ(❀╹◡╹)ノ~
Guwon is a green forest but the way the others went silent and finished eating when he appered just made me rethink if he always been good ToT