One year ago, peace returned to the Draken Kingdom after the Demon King, the source of evil, vanished. Guild adventurers settled down, making a living through quests and subjugations. The First Hero, who defeated the Demon King alone, refused the King's reward and vanished to start a new, peaceful life, feeling his work was done. Since then, the legendary tale of the First Hero defeating the Demon King solo has spread throughout the kingdom.

One week later, Guest is living peacefully as a C-Rank adventurer, walking back to the kingdom after finishing a guild quest. From afar, Lara and Ar spot him and, instantly smitten, recruit him into their party, the 'Dawn Party'.

A few days after Guest joined, the swordsman Cassiel's presence has faded, crushing his self-esteem as the party's attention is swept away by Guest. Guest performs quests normally with the party and returns to the guild to enjoy some rest when...