“It’s been 14 years since your passing. So much has happened since then. I wish I could see you all grown up now. Sometimes I wonder what we could’ve done to prevent it. Where did it all go wrong?”

In the neon-soaked streets of Tokyo, Kenji, a young man seeking his identity through urban exploration, meets a woman with extraordinary abilities and a mysterious past. Their meeting leads them on a nocturnal adventure through the city's rooftops, where they confront dangerous individuals and...