Introduction: Sato Maylene, known as May to her coworkers, has always led a peaceful life. Despite the frustrations of being single and a virgin at 30, she never let it get to her. Dedicated to the extreme, she stood out for her mastery and impeccable performance in her work, even if she constantly ignored her own well-being to do so. However, her perfectionism and excessive effort ended up costing her her life - Maylene died of exhaustion and physical wear and tear.As she was dying, she heard a strange phrase: “The ritual is happening... The new hero is coming! The new hero is coming!”. Even though she hears these words, she can't understand them, because the next moment she wakes up in an isolated cave....