all members of "Honda-San's Living Room" share the surname "Honda", they describe themselves an an "Idol family unit", although they don't seem to be blood related, they have a small sister member but she doesn't participate in the groups activities and is more or less there for emotional support
their aim is to portray a happy yet dysfunctional family that lives happy together but that sometimes fights and argue with each other (sometimes to the point of violence!) their producer is Suzuki Manaka, he is known for creating the group Wa-suta / The World Standard
Homicidols originally posted an article about them along other upcoming units, i think their concept is pretty unique
teaser
the members
(one member seems to have left the group? i believe that's why there are only 5 members + the little sister)
the little girl is called Kotori, no photo because while she isn't an active member i don't post children's pictures
website
本多さんちのリビング