Fresh off the loss of the Storm card to Syaoran, tempers flare between Sakura and Kero-chan. Kero is irritated by Sakura’s “moronic” voice, while Sakura is outraged that Kero threw all the contents of her desk drawer on the floor to make a home for himself. Their bickering puts Sakura in such a lousy mood her footsteps shake the whole house and even the normally mocking Touya is cowed by her dark aura!
The two don’t leave things in a good place, so when Kero-chan opens a package containing alcoholic chocolate, he eats it all and checks out of the Kinomoto residence altogether, leaving Sakura wondering where her familiar went off to.
Kero ends up sleeping one off on a couch in an alley, and is found by a little girl named Akane. When he wakes up to find himself in her home, he quickly learns that her dad has passed and her mom is busy at work, so she’s usually home alone and lonely. Kero’s heart is too big to ditch her so he adopts her name for him—Chau—and keeps her company.
Since Kero is also the responsible and technologically savvy sort, he sendsa facsimile—that’s right kids, a FAX!—to Sakura letting her know he’s fine. Tomoyo quickly uses her hacker skillz to pinpoint Kero’s location based on the fax number, just as Akane learns Kero can fly and starts to float out her own window. At first it’s fun, but soon Kero realizes the Float card is causing Akane to fly to dangerous heights.
Thanks to Tomoyo Sakura is able to Fly to the vicinity and catches Kero just as he runs out of gas trying to catch the ascending Akane. Sakura seals Float, then uses Wood to grow a tree that cushions Akane’s fall. Akane then moves away with her mom, who switched jobs to spend more time with her, meaning she won’t be lonely anymore.
Kero returns to Sakura’s, where she prepared a neat little mini-apartment in her drawer, acknowledging his need for privacy. However, their reconciliation is curtailed when he breaks the cardboard bed she made for him and he questions the craftsmanship. But as the past day’s events proved, they’re much better working as a team than apart!