The Rebirth Of The Fallen Demon Lord.

In a world there was a small town named Toshi. The town was peaceful until the demon lord and his army of demons attacked; the humans tried their best to fight back against the demon lord and his army, but they were lacking manpower. When the demon lord made his appearance amidst the chaos. 7 heroes rose to attack the demon lord. Their battle went on for 8 consecutive days. The heroes then use a skill called link to use a joint attack on the weaken demon lord. The demon lord was trying his best to hold off the heroes until the rest of his army could arrive. The joint attack from the heroes then pierced a hole in the demon lord's chest. Blood started pouring out of the hole in the demon lord's chest. The demon lord tried to heal it but his mana was too depleted to continue the fight. After the demon lord died; 30 years later the town Toshi returned to being the small and peaceful town once again; Until something unexpected occurred.