We have the premiere date for the anime Deaimon (であいもん). According to the official website, the series premieres on April 6th of this year.
In addition, a teaser and a new promotional image were revealed:

Maaya Sakamoto sings the opening theme song “Sumire” in the series:
The animation is by studio Encourage Films (Isekai Cheat Magician, Etotama). It is directed by Fumitoshi Oizaki and features character animation by Yukie Yamamoto.
Synopsis:
The story revolves around Nagomu, a man who left his home in Kyoto and his family's confectionery shop when he decided to become a musician. Upon learning that his father is hospitalized, he returns to take over the family business.
Finally, Rin Asano published the manga Deaimon in Young Ace 's Kadokawa in May 2016.
