Kin-iro Mosaic - 2x05 - おねえちゃんとあそぼう- Followmy.tv

Noticing that Isami appears to be more spaced out than usual, the girls invite her to hang out with them on a photo-snapping day out to try and cheer her up. While depressed for most of the day, Isami soon returns to her usual self after saving Shinobu from getting hurt. Later, Alice, inspired by the tale of the Straw Millionaire, goes on a trading quest, eventually receiving a valuable ring from Karen, which she ends up trading with Isami for the one thing she considers more valuable, Shinobu.