The official website for Shueisha’s Ribon magazine has announced that Kozue Takeuchi will draw a side-story chapter for her Chocotan! (Chocolate & Tan!) shōjo manga titled “Happy-tan!” in the magazine’s next issue on December 1, 2017. The side-story will have 40 pages, and will center on the child of Chocotan and Happy.
Takeuchi launched the manga in Ribon magazine in 2011, and ended it on September 1, 2017.