
Yeah and the teacher deliberately left out things when he told Yoon, "I got him drawing something vulgar once and scolded him", yet later asks the Painter if he's still selling his erotic paintings. He KNOWS what the Painter sold ancient Yaoi. If he was worried about that secret being found out, why mention it at all to Yoon.
Teacher was testing Yoon when he dropped that "I caught him drawing something vulgar". He wanted to see Yoon's reaction. He already has figured out that Yoon brought the kid there to paint Sodomy. So if he knows, why did he go to the manor?
I think in Ch 6 it was not Yoon manipulating the teacher, but the teacher manipulating Yoon. Shady Teach read the situation and said the things he knew Yoon wanted to hear.
1. Young Master is Psycho and Teacher is Socio.
2. The young master is wrong for manipulating the Mc into drawing erotic images for him.
3. The teacher is clearly also a manipulative jerk who's using the Mc's feelings to stop him from drawing erotic images.
4. Even though young master is wrong for doing this to the Mc I feel that he should just draw the paintings to get the young master off his back. (I hate to see him get knocked around like that)
5. Does the Mc himself want to draw erotic paintings? The only reason so far that I've seen him refuse to (and correct me if I'm wrong) is because his teacher finds it vulgar. He clearly has some kind of crush (or maybe just really admires the teacher) and will do anything to please him. Which means he himself might like drawing them, but he just doesn't want to upset the person he likes and pushes his own feelings/desires down.