It was announced that AKB48 members Nakaya Sayaka and Tanabe Miku will be forming a new unit called Baby Gamba. The group is based off the children's book Boukenshatachi: Gamba to 15 hiki no Nakama. Their debut single Ee Janai ka will be released on September 14th.
Since this is a unit for children I can't really say that I'm too excited for this new group. However, you seem to make a pretty penny off of children's songs, so more power to them.
The some itself seems pretty cute, so does the PV. It's just obviously far too childish for me to overly care about this group.
Here's a PV preview of their debut single.