Answer
Kazuya Kudo is the writer of Pineapple Army, which is Urasawa's first major work. It was a serialized comic that ran in Weekly Shonen Sunday from 1982 to 1983. The story is about a group of teenagers who form a gang called the Pineapple Army in order to fight crime. The series was a critical and commercial success, and it helped to launch Urasawa's career as a manga artist.