How do you get to the bully's computer? It says that you need to meet Nga and her grandma at school but I don't know how, coz everytime I visit the school, the options were just to visit the professor in his office and to go room 402.
You probably already talked with Nga about her Grandma. Go outside and visit Shop of Nga's Grandma or Eastern Medicine shop and inquire about how to put someone to sleep.
