Weekly Young SundayWeekly Young Sunday.

Weekly Young Sunday (Japanese: 週刊ヤングサンデー, Hepburn: Shūkan Yangu Sandē) was a weekly seinen manga magazine published by Shogakukan in Japan since the first issue on March 27, 1987. It replaced Shōnen Big Comic in Shogakukan's lineup of shōnen titles, and many of the titles in Shōnen Big Comic were continued in Young Sunday. The magazines was sometimes called Yansan (ヤンサン) for short.