16화: 주얼 랜드 카페 직원들이 비치 샵을 열면서 치아리가 코스케의 서퍼 할아버지를 만나다

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It's summertime in Jewel Land and the cafe didn't have any customers for the past few days due to vacation and the extreme heat makes it worse. Ruby then came up with an idea to open a shop in the beach for them to make more profit for their shop. Later on, they opened the "Jewelpet Seaside Cafe" on the beach and goes to work, with each of them were hard at work cooking, preparing and serving food for the customers. Chiari and her friends made a stop to see their progress and glad they're doing fine. Teacher Azusa then appeared and gave the girls a warning not to talk to everyone. As the day goes by, the shop is bustling with customers and the pets were busy with the orders while Ruby and Chiari decide to relax at the beach and left the shop. As they all relax and play together, they then encounter an old man who runs his own shop. The two were deciding to ignore him until he offers them some pudding, but Kosuke interfered and scolded him. Later, they found out he's actually Kosuke's grandfather and they both enjoyed some pudding and Chiari was confused that he's active yet goofy. As they talked, Kosuke take his leave and left the place disappointed while his grandfather is eying on Chiari. A while later, he showed to them his photos depicting his younger self as he explained on him being a surfer and how cool and active he is during those times. Chiari and Ruby shifted their focus on the girl in the photo as he told them that's his wife and also Kosuke's grandmother. He also explained to Chiari's that he wanted to ride the great waves like he used and also wanted her to get close to his grandson, something she didn't expect. A while later, the trio were watching over a volleyball competition between Kosuke, Mouri, Takumi and Taira as he told Chiari she has the potential to be his girlfriend. Chiari however, had some doubts that it could end well like he expected. (Source: Wikipedia)