Mr. Park realizes that Rai was being rude to him, and while he was thinking about it, Shinwoo gets up and says that Rai does not have any kind of exposure to the culture and what he did was probably an honest mistake. Then (quite conversely) Shinwoo asked his teacher to put Rai in a armlock for 5 seconds as punishment. Mr. Park said that he will not do that and suggested that he'll do it to Shinwoo instead. Shinwoo then sat down humiliated. Mr. Park told Rai about how he should respect his elders. Rai shoots a meaningful glance at Mr. Park (because Rai is over 820 years old). Rai was then instructed to sit next to Shinwoo.
In the next period when classes started, the instructor asked Shinwoo why he had his desks joined with Rai, Shinwoo said that Rai did not have his books. The instructor then asked why there were three students who had their desks joined together, Shinwoo replied that he also did not have his book with him.