Stories about young, Gilthunder as protagonists available until May 10

The Japanese version of DeNA 's free Manga Box smartphone and tablet app added Nakaba Suzuki 's two spin-off manga of his original manga The Seven Deadly Sins on Tuesday.

The first spinoff manga, titled Naku na, Tomo yo (Don't Cry, My Friend), is about Hendrickson and Dreyfus ' younger years. The second spinoff manga, titled Gilthunder no Shinjitsu (Gilthunder's Truth), is set after the Byzel Fight Festival arc, with Gilthunder as the protagonist.

Both manga are available for a limited time until May 10. Users must install both the Japanese Manga Box app as well as DeNA 's smartphone RPG app Nanatsu no Taizai : Poketto no Naka no Kishidan ( The Seven Deadly Sins : Holy Knights Inside the Pocket) to read them.

DeNA is also running a goods campaign for its Nanatsu no Taizai : Poketto no Naka no Kishidan smartphone RPG until March 9. Players can acquire art boards signed by Nakaba Suzuki , a set of the manga's compiled volumes, the Seven Deadly Sins: Unjust Sin game for Nintendo 3DS, and stuffed toys of Hawk.

Source: Comic Natalie