"If you want my power, you will need to pay the price...with the very ideal future you have set up in your mind". That was what was heard by the Hero's party 90 years ago, when they defeated the Demon King, a threat that plagued the entire world.  It was there that one of them payed the price, and using that power, defeated such a threat.  However, this didn't make all the monsters, all the threats, all the terrors, just vanish.  It didn't make the scattered generals just submit peaceful, and due to how spread out and secretive some of them were, not even the Heroes Party could do everything. But this is why the Adventurer's Guild exists.  That place that is known for having those with potential, those with compassion, those with arrogance, and those with aggression.  It could be said to be the melting pot of various different types and different people, and was considered to be a place that a child had no place in normally and could not survive in. Even the members of the hero's party, the Hero Takumi Hiyama, the mage Evris Page, the swordswoman Rebeca Blair, the magic swordsman Yuma Ruzzo, and the rogue Suzana Glaira.  All of them ended up becoming famous existences, and all because they joined the guild and worked hard.  As such, the amount of people who joined the killed, and ultimately those who would cause the guild trouble or get them into trouble, increased.  Because of those five talented people, who are said to all be alive to this day. And so these are the records recorded by one such member of the Adventurer Guild, about one such member and all they encountered.  A story about the one who became the greatest Guildmaster of all time, and who would end up solving countless problems.