Steak/hamburger restaurant "Takeru Akihabara" will open on July 3.
The location is on a back street, in the vicinity of "Yaro Ramen Akihabara" (3-2-11 Sotokanda, Chiyoda-ku, Tokyo).
According to the job posting, "From Osaka! 1 pound steak and hamburger restaurant".
Apparently, this will be the Kanto branch of Takeru, a steak/hamburger restaurant that operates in the Kansai region.
[addendum]
The location is the former site of Hanamichiya, a family-style ramen restaurant that closed on May 27. To commemorate the opening, the restaurant will be offering a special sale until July 5, with all eligible dishes priced at 29 yen (*first 50 customers/after that, the maximum price will be half off) and draft beer at 100 yen per glass.
Open from 11:00 to 23:00 (lunch until 17:30). No holidays. Regular business hours start July 7.