Akuma/Tenshi Wars

"Akuten Wars," a game in which the players fight with devil and angel cards. The main character is middle school student Roto. One day an angel appears in his dreams and tells him that devils are using the game to take control of the world. He thinks it's just a dream, but then a classmate who is playing the game seems like he is possessed by a demon… (Source: Manga Tokyo, edited)