Well the Marisa wasn't a badged Yukkuri at all, since the owner didn't really have the time to train her. Then the Reimu corrupted her into acting like this.
I laughed at the Marisa finding stuff from all over the house, claiming she'd found it all and that she was amazing. Then, when she says she wants to bring Reimu and her babies in, that Mister might have to find a new place to live.