Shinmyoumaru Sukuna

Shinmyoumaru is a descendant of Issun-Boushi, a legendary oni-slayer who managed to obtain from them a treasure called the Miracle Mallet. At first, he only used its wish-granting power to make himself bigger and to get himself a princess. He thought that since the Miracle Mallet was an oni's tool, using it recklessly would cause his own ruin. Several generations later, this particular mindset was all but gone in the minds of most inchlings. One of his descendants decided to use it again in order to live in luxury, thus breaking the taboo. However, the descendant wished for a grand castle a...