A. Summer is over and a typhoon has hit the city so Shinobu could not return to the mansion from Kaede's house, where he will have to spend the night, while his companions will have to fend for themselves until she arrives. B. After the typhoon the weather has improved, so the girls decide to go to the forest to collect mushrooms; obviously Onsokumaru and the rest will follow them to cause disaster. There they will meet Izumi, another ninja teacher, and her apprentices.