A dream gift turns into a secret you're keeping alive while the world hunts it down. Densuke isn't just a pet that transforms into a mecha, it's a piece of you made mechanical, fighting in your shape, for reasons nobody will explain until it's too late. This is what happens when a '90s magical girl show decides its transformation sequence needs a cockpit, its love interest needs to be a creature that depends on you, and every comfortable thing about being ordinary gets burned down the moment you turn it on.

Hibari Hanakoganei receives an unexpected gift from a prince in her dreams: a patapi, a small mechanical creature that acts like a cyber pet, which she names Densuke. Patapis can eat, sleep, play and help their owners with everyday tasks, but Densuke turns out to be far from ordinary when mysterious forces try to steal it. It has magical powers that let it transform into a powerful cyber-fighter who resembles Hibari. Her friends receive similar patapis, and together they form the Cyber Team in Akihabara in this sci-fi adventure with mecha elements.