An ordinary office worker finds herself reincarnated into the world of her favorite mobile game as a powerful saintess. Determined to save her beloved character from his destined exile, she vows to change his fate at any cost. But there's one major problem: to protect him, she must infiltrate an all-boys boarding academy where girls are strictly forbidden! Willing to cross even the boundaries of gender for the sake of her favorite character, she sets out on a daring mission to rewrite the story. Little does she know that her unwavering devotion might lead to an unexpected romance she never saw coming.