Okayanonymous's manga / #Shounen(2)

Tanjiro is the eldest son in a family that has lost its father. Tanjiro visits another town one day to sell charcoal, but ends up staying the night at someone else's house instead of going home because of a rumor about a demon that stalks a nearby mountain at night. When he goes home the next day, tragedy is waiting for him.

which has turned into their food, has surrounded its residential zones with immense walls, which both prevent their freedom outside the walls and protect them from incursions. However, as a result of the appearance of supergiants who cross the wall, a desperate struggle begins and the young heroes, who have lost their parents, fight the giant as a training corps, with a view to regaining their freedom.