The Twelve Kingdoms Wiki

Chuchin (蛛枕) is a student at the Daigaku in the Kingdom of En along with Rakushun and Meiken.[1] He was given the name "Chuchin" (spider pillow); an anecdote claims that his overzealous studying resulted in spider webs forming on his pillow, thus the origin of his nickname.[2] His formal personal name is Shintatsu (進達).

Chuchin has been studying at the Daigaku in En for over eight years, but eventually gives up the dream of becoming a government offical because of how many times he failed the exam for a certificate and gives all his books to Rakushun. He has a wife and child, which likely contributed to his decision to finally quit studying in order to support them.