Kuroto was staring at a food program on TV and wanted to taste gratin. But he quickly leaves for work, while Senko continued watching the program. She asked Koenji about the food Nakano was craving about and Shiro wanted to help cook too. Shiro, Koenji, and Senko proceed to make gratin and after it's baked, they ate it. At night, Senko gave Nakano the gratin to eat. He notices there was something else in the food, but it tastes the same as Senko's cooking. Meanwhile, Shiro gave Koenji ramen and it tasted sweet...