After the event of Gaia Memory outbreak and the saviour M 20 years ago. Seoul have become and new metropolitan city and even better than Tokyo. This is a story about a rogue boy named Kai that lost his memory in the event 10 years ago. He's here to slowly regain his lost memory and defeat the threat that's going on around the city.

KAI

- 21 years old

- genius gamer K

- loves to play games but now he's a trainee doctor in Seoul hospital.

MOMO

- the only one who knows Kai's past

- escaped from Dan's prison and amnesiac

- Kai true love

CHEN

- Kai's senior in doctor occupation

- cold but soft hearted.

- loves sweet things such as cake

JB

- rogue doctor

- very strict and hot headed

- hates anyone to annoy him

DAN

- CEO of Genm corp

- genius creator

- evil and psychopath