Azuma Nanako is an ordinary Japanese high school girl at PK Academy. On an unremarkable day, much like any other, she finds a fragment glowing with golden light.
The fragment calls itself System 444. It can take Azuma Nanako as she transmigrates between various anime worlds, turning her into a special and powerful being and letting her leave her utterly unchanging ordinary life behind.
Azuma Nanako has often imagined gaining superpowers and embarking on a life full of wonders and adventure. From then on, she becomes the Host of System 444 and begins traveling through all kinds of anime worlds, winning over one protagonist after another.
Theme: Don't trust others too easily, or you'll pay the price.
