Set in a town ruled by the Oscar Family mafia, a girl named Lisa arrives looking for a man named Akagi Yuuichirou. It turns out Akagi is a local laundryman who is horrible at his job. What could Lisa want with such a strange man?

A booklet included inside Harta volume 50 of Hakumei to Mikochi manga and illustrations written and drawn by various Harta contributors. (Source: Natalie, translated)

Rising to become the ultimate adventurer using a buggy gift that allows for limitless usage at negative infinity!! Zeon was banished from his home after receiving the mysterious Gift [Negative Limit Break] during his coming-of-age ceremony. Just as he resolved to start anew as an adventurer, he was attacked by a massive horde of monsters and faced certain doom, but then... The true power of [Negative Limit Break] was revealed, completely turning the tide of battle!? By honing the hidden potential of this "dud" gift, he rises to become the world's strongest at a speed that defies all reason!! **[Original Manga](https://manga-zegra.com/series/4e0b47d86a23c)**