Dennou Kakugi Mephisto Waltz

Revolves around a student who happens to intrude upon a NEET detective and became her assistant.

Enter Hikawa Naomi, son of a music critic and Ebisawa Mafuyu, a young prodigy pianist who suddenly disappeared from the music world.

Chris, the young boy who holds a brand that devours the fates of the people around him. Minerva, the young girl who holds a large sword across her slender frame. The two of them clash one evening in a spray of blood, and thus the wheels of fate begin to turn. With the power of the brand distorting everything in their path, let their daily struggles begin!

Prodigy pianist Morimiya Francois permanently injures his left hand and his musical career is brought to an abrupt halt. He plunges into despair with no other interests or skills to live for, but amidst the darkness, he stumbles across his video game doppelganger and is quite forcefully introduced to the world of fighting games. Where will this new hobby lead him?

In order to follow her dreams and be like her mom, Chika sought out her mom’s high school to join the Folk Music Club. However, when she entered the school, the club that her mother made famous no longer existed. Depressed and at a loss for what to do, Chika eventually meets Tenko who wishes to create a band and believes Chika to be the answer. Chika is excited to be able to play in a rock band but… why are the other members all holding string instruments?

Kirika Hijiribashi is the Executive Committee Treasurer managing a high school Student Council budget of 800 million yen. She is also the only committee member with an additional title: Student Council Detective able to sniff out amazing solutions to bizarre cases. Hikage Makimura, who recently transferred into the high school, finds himself not only tricked into joining the Student Council, but is now assigned as her assistant. Adaptation of the light novel series written by Sugii Hikaru with illustrations by Pon Kan