Celebrate the Anime Adaptation of 'Do Not Underestimate the Demon King' with a Special Fair Join the buzz around the exciting anime adaptation of 'Do Not Underestimate the Demon King' with an exclusive illustration card at supporting bookstores from January 8, 2026!

Celebrate the Anime Adaptation of 'Do Not Underestimate the Demon King' with a Special Fair #Tokyo #Micro_Magazine #Anime_Fair #Do_Not_Underestimate