After playing the game, Shin Megami Tensei IV (when I started reading it I finished the Chaos route), I started reading this manga. It's different from the game but it's really well made and interesting!! (And the drawings are awesome!!)
The story follows the Samurai Walter (from the game) and Gina (a character created for the manga) and many things follows the videogame. I don't want to spoiler anything since the game is really great.
I loved to read this manga but for now is on hold since no one translate it anymore ;__; they stopped when the story was really interesting!!! I hope that someone will continue to translate it!! >_<
My rating: 10/10