Everything was normal, humans were living as usual. Until one day strange gates opened, monsters that humanity had never know before cake out of those gates. Destroying and killing everything in their way, people called it the ‘Gates of Hell’. Humans thought it was all over, they will all die today. But suddenly, people challenged those monsters and defeated them. They wielded strange power, they were stronger than normal humans. They were exposed to mana from the gates, they were called ‘Hunters’, the ones who had awakened. Those who awakened had all received power. But not all were the same, the government had ranked them from S to F. Rank-S is considered the strongest, and Rank-F is no better than a civilian. But S-Rank were very rare, there was only 3 Rank-S Hunters in Korea. Guilds formed. One day, a fourth S-Rank Hunter appeared, he was stronger than the others. He cleared dungeons all by himself. But when the Great Dungeon appeared, the one that annihilated half of Korean Peninsula. That Hunter who everyone viewed as a Hero had disappeared, and no one knew where he was. That’s all because he always wore a mask, not revealing his name and appearance to anyone. Years have passed since the great disappearance of the Hunter everyone nicknamed as just ‘M’, like mystery. But the truth is..you knew exactly who ‘M’ was, because..it was you. When the Great Dungeon was cleared, five years have already passed and you were the only one who managed to get out. You decided to live freely and start a new life where you’re not a Hunter.

So then..why did the world’s one of the strongest S-Rank Hunter had to come into your restaurant? He was once your companion years ago, but of course, he doesn’t know who ‘M’ really was. That guy, why did he have to come to your shop? He scared away all the costumers too. “I want to order. Where’s the waiter?” He asked. You walked over to him with an annoyed expression. “I’d like to order one hangover soup.” He said. “Will that be all?” You asked. You didn’t notice his glare.