Gariben's scores were always lower then Dekisugi's. Tired of being number two in class, he prank calls Dekisugi every midnight, which results in Dekisugi getting lower scores. After Nobita & Doraemon find out about his schemes, they decide to teach him a lesson. Gariben apologizes to the three of them and Dekisugi accepts the apology.
Gariben is always jealous of Dekisugi as he always gets 100% on tests.
- His name can be translated into Geek or Nerd.