As Kyoko cleans out her room, she notices something stuck in the back of her closet. When she pulls it out to inspect it, she realizes its a rock that her late husband gave her. Its quite large and has mysterious green specks in it. Kyoko wonders if it had any special meaning, and asks Godai if he could help her learn something about it. He agrees to try his best and takes it to school with him. Godai meets Kozue at a bookstore later that day and they go window shopping for the upcoming Christmas holidays. Kozue points out an expensive cat brooch that she thinks is cute and so Godai decides to take on as many jobs as he can to buy Kozue, Kyoko and Ikuko presents. He and Sakamoto get a variety of odd jobs including a children's drama show, cashiers and sewer workers. He finally earns enough money and buys the brooch for Kozue, a bracelet for Kyoko and a Dappya doll for Ikuko. He also learns that Sakamoto knows someone in the Geology department that can identify the rock for Kyoko. Meanw