Since living on the banks of the Arakawa River, Riku “has been having more and more memories that he would like to ‘remember’ later. Although he and Nino have grown completely closer, Riku is troubled by the fact that the place is owned by the state and the residents are still trespassers. Meanwhile, Piko has a crush on the village chief. With the encouragement of the Last Samurai, P-ko decides to make a move on him, but she is crushed and becomes a bit of a wimp.