How NOT to Summon a Demon Lord is a Japanese light novel series written by Yukiya Murasaki and illustrated by Takahiro Tsurusaki. The story follows a young man named Takuma Sakamoto who is transported into a fantasy world after being summoned by two girls who believe he is the powerful Demon Lord Diablo.
However, Takuma is actually just a socially awkward gamer who has been playing as Diablo in his favorite MMORPG. With his new identity as the Demon Lord, Takuma must navigate this new world and use his gaming skills to survive. Along the way, he forms alliances with the two girls who summoned him, Rem and Shera, as they embark on a quest to uncover the truth behind Takuma's summoning.
How NOT to Summon a Demon Lord is a comedic and action-packed series that explores themes of friendship, identity, and the power of gaming. With its unique premise and lovable characters, it has become a popular title among fans of isekai and fantasy genres.