Sakura and Kero's Big Fight (S01E15)

Kero and Sakura got in a big fight, and Kero ran away from home... After falling asleep on the street, he woke up to find himself in a strange apartment. It turned out that a little girl named Akane had found him and brought him back to where she and her mother lived together, just the two of them. Sakura and I went looking for him, but it was no use. Meanwhile, Akane was left home alone while her mother went to work, and Kero decided he couldn't just leave her there by herself. Just then, the Float card came and carried Akane high up into the sky. Kero tried his best to go after her; but he just couldn't keep up. All of a sudden, Sakura rushed in and sealed Float away! She had asked me t help track down where he was, and managed to arrive just in time. A few days later, Akane was forced to part ways with Kero when she and her mother moved to a new city. A little embarrassed by the whole thing, Kero bashfully returned home with Sakura. (Crunchyroll)