I assume the Sanden Blue Ecores are indeed done for good because the V9 Champ people announced that another Panasonic Team -- Panasonic Tsu Advance -- will promote to the Women's First League next year by virtue of winning the Women's Second League this past weekend
V9 has done Challenge Matches in the past but I get the feeling they just wanted to be done with everything this year as quickly as possible. Call it a day.
Panasonic Tsu Advance
2021 V9 Champ Women's Second Division Champions