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How NOT to Summon a Demon Lord Gets Smartphone Game, Alarm App

A Twitter account for a smartphone game based on Yukiya Murasaki's How NOT to Summon a Demon Lord (Isekai Maō to Shōkan Shōjo no Dorei Majutsu) light novel series and its anime adaptation opened on Saturday. The game is titled Isekai Maō to Shōkan Shōjo no Dorei Majutsu X Reverie, and it is slated for this summer.

The X Reverie iOS and Android game will be free-to-play with in-app purchases. It will have an original story and voices from the anime's cast. The website is hosting preregistration campaign where registrants can receive autographs from cast.

The anime's official website also announced an alarm app featuring 3DCG of the characters Shera and Rem, with voice clips such as "It's morning, get up!" (pictured below). The app has AR and VR modes, and is already available.

J-Novel Club is releasing the novel series in English, and it describes the story:

In the MMORPG Cross Reverie, Takuma Sakamoto is so powerful that he is lauded as the “Demon Lord” by other players. One day, he is summoned to another world – but with the same appearance he had in the game! There, he meets two girls who both proclaim themselves to be his Summoner. They had performed an Enslavement Ritual to turn him into their Summon... but that's when Takuma's passive ability "Magic Reflection" activated! Instead, it was the girls who had become enslaved! Though Takuma may have been the strongest Sorcerer there was, he had no idea how to talk with other people. That's when he makes his choice: to act based on his persona from the game!

“Amazing? But of course... I am Diablo, the being known and feared as the Demon Lord!”

So begins a tale of adventure with an earth-shakingly powerful Demon Lord (or at least someone who acts like one) taking on another world!

Kodansha published the first novel with illustrations by Takahiro Tsurusaki in December 2014, and published the ninth volume on February 2. J-Novel Club released the third novel as an e-book on May 7. Naoto Fukuda launched the manga adaptation on Kodansha's Suiyōbi no Sirius (Wednesday Sirius) section on the Niconico service in June 2015, and Seven Seas Entertainment announced last September that it has licensed the manga.

The anime will premiere on July 5 on AT-X at 9:30 p.m, on Tokyo MX at 10:00 p.m., on BS Fuji at 24:00 (effectively July 6 at 12:00 a.m.), and on Sun TV at 26:00 (effectively July 6 at 2:00 a.m.). Crunchyroll will stream the anime worldwide outside of Asia, and Funimation will stream the anime in the United States, Canada, United Kingdom, Ireland, Australia, and New Zealand.

Sources: How NOT to Summon a Demon Lord website, X Reverie Twitter via Otakomu