Mitaka is background character. He works in the same corporation as Nakano. Mitaka is asking Nakano for assist often, what ends with main character is coming back late home or sleep in office.

Sometimes the cure to a hard day’s work is the tender love and care of…a fox girl?! Salaryman Nakano’s stressful life is suddenly intruded upon by the fox, Senko-san, who is eager to help him heal his exhaustion. Whether she’s cooking, cleaning, or finding other ways to care for Nakano, she’s there to take away his stress! 
 
(Source: Crunchyroll)

He is a voice actor and narrator who is affiliated with Arts Vision.
Not to be confused with [Jun Fukuyama (福山潤)](https://anilist.co/staff/95086).

[Profile](https://www.artsvision.co.jp/talent/14317/) | [Blog](https://ameblo.jp/yyg-48/) | [Wiki (en)](https://en.wikipedia.org/wiki/Jun_Fukushima) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E7%A6%8F%E5%B3%B6%E6%BD%A4)

[Website](https://officialmattholmes.com) | [Instagram](https://officialmattholmes.com/)

The everyday life of Nakano, a salaryman working for an exploitative company, is suddenly intruded upon by the Kitsune, Senko-san (800 Years Old - Young Wife). Whether it be cooking, cleaning, or a special service...She'll heal his exhaustion with her tender care.
 
Note: The main storyline was completed in 91 chapters (12 volumes). Author announced they will continue to draw chapters on an irregular basis.