Sun meets his code brother, Rain, and goes out for a night of drinking with his new friends.  When Sun get's drunk, Biabua calls Kim to take him home as Kim is the only one who knows where Sun lives. 

Kim recalls his childhood memories that always make him smile and happy when he remembers that memory. At University, Rain and Payu stretch together; Baibua brings Payu a gift and sees the moment while Rain and Payu are helping each other stretch. At the music club, Prof. Wannasingh called an urgent meeting about the classical guitarist who had an accident. As a result, the music club had to cancel the show at the closing of the rugby game. Meanwhile, Sun accidentally stumbles into the music club room.