The DVD sets are priced at 9,000 yen each while the Blu-ray sets are priced at 10,000 yen each.
The second season is now underway with the first set scheduled for an October 25th, 2019 release and that now has Avex Pictures bringing out solicitations for the second, third, and fourth sets of the season.
The first season of the show was done as four box sets that began on October 16th, 2018 and wrapped up on July 26th, 2019.