Toki no Yuusha

In a world where half of humanity's territory has been eroded by demons, Valt, who bears the crest of a hero, is the hope of humanity. Just before his 17th birthday, Valt, before his heroic powers awaken, learns a certain truth. This is a heroic tale drawn by a team of Yotsuba of "Paripi Koumei" and Sato of "Our Cupid Senki".