A young man finds himself reincarnated into the world of the hit game, "Brave of Asterisk."

However, his role is that of Sylva, a lowly mob gate guard with absolutely no connection to the main characters.

Sylva endeavors to live his life while keeping his distance from the main characters, lest his actions disrupt the storyline. However, by a stroke of unexpected luck, he ends up saving his favorite character, Charles Aurorand, from peril.

Since then, Charles has taken a liking to Sylva, and despite being merely a mob gate guard, Sylva begins to earn the notice and respect of the main characters.

"Just let me be a mob!"

Sylva's desperate plea echoes once more today. Yet, there's no way he can ignore the heroines drawing ever closer――――

This is the story of the strongest mob, living his life in the world of the game he adored.