She doesn't just transform. She transcends.

The story typically follows Lune as she uncovers the truth behind the "System" that grants her powers. She eventually learns that the modifications are not just for her benefit, but part of a larger, more sinister experiment. The climax forces Lune to decide whether to embrace her fully modified, god-like state or find a way to reclaim her original self, even if it means losing the power to protect her world. ending variations for Mystic Lune?