Akari Yamada, an average high school girl, met an untimely end due to a banana peel incident. In the afterlife, she encountered the Spirit of Rebirth who informed her of a special reincarnation opportunity. Akari was given a slime companion that merged with her, granting her incredible powers. She found herself in a medieval town where she discovered her abilities to heal, stretch, and transform. However, she couldn't separate herself from the slime and began a quest to find a solution.Akari visited the town's grand library in search of a way to unmerge. She came across a book titled "Mystic Mergers and Curious Cures" which revealed the complex process and rare ingredients required to separate from the slime. The book also mentioned the importance of understanding the bond. Akari decided to get to know her slime companion better.During her journey to gather ingredients, Akari encountered comical situations such as stumbling into a nest of talking mushrooms and transforming her legs into a mermaid tail while fishing. Despite these mishaps, she grew stronger and realized the slime's value as a companion who had saved her multiple times. She appreciated its quirks and understood the bond mentioned in the book.One evening, while resting by a campfire, Akari expressed her growing understanding of their teamwork. A mysterious figure, the Sage of Separation, appeared and offered to help her unmerge from the slime. The figure challenged Akari to prove her bond with the slime. Ready for anything, she accepted the challenge, excited yet nervous about what lay ahead. She knew that no matter what, they would face it together as an inseparable duo. Perhaps the journey to unmerging would reveal more about herself and her slimy companion than she ever imagined.