The next morning, Mina and Harada arrive at Tomoe's house. Mina tells Harada that they're going to have to stay at the inn for the night because of all the work they'll need to do for the next day's training. She also tells him that she's going to wear a swimsuit under her clothes so she won't have to sweat it. Mina explains that she has been using sound waves and vibra-tions to create a shockwave when she swings a sword, but that it's getting too fast for her. The purpose of the training, she says, is to add more oomph to the sword's swing. She asks Harada if he'll show them around the house, and he says he'd like to, too.