As the dungeons grow more punishing, the weaknesses in the party become increasingly obvious, and everyone turns their attention to the team's only support.
But after replacing her, they don't succeed. Instead, they nearly get wiped out, and the team falls apart. That's when they begin to miss the days when Simon was with them.
When they meet again, they discover that Simon has become the support core of a new era, surpassing even them at their peak.
"If I'd begged you to stay back then, would things have turned out differently?" Whenever someone thinks of it, they can't help feeling dejected and filled with regret.
[Elements: Japanese light-novel-style party-kickout story, being pursued by former teammates]