Follows a once renowned boxer as he takes a redemptive journey through his past and present, on the day of his first fight since he left prison.。《请吃红小豆吧！外传 莫相忘》的主角是一颗红豆，名叫红小豆，是一颗很普通的食用红豆，却被人类误以为是王维诗中有着相思之意的相思豆，送给了心上人。从古代到民国再到现代，历经三世的红小豆以一颗红豆的视角讲述了三个平凡却又美好的爱情故事。。