Anon returns to a home he carelessly left unlocked to find a Meiling instead of the usual shitheads. It apologizes (by action), and he lets it go with food. It is revealed that Meiling's mate Flan is being held hostage by a group of 6 yukkuris (the usual 4 plus Chen and Myon), who make Meiling gather food for them, and serve as their toy.
Just as the Marisa is about to smack Meiling around, Anon, having followed and saw everything, kicks Marisa away. He takes out a 2 litre bottle of orange juice, and asks the Sage if she knows what orange juice is for, and why did they do that to Flan. The yukkuris sneer at his 'stupidity' arrogantly... only to realize that Flan is now standing over them, suddenly a bodied yukkuri.
Previously, Anon learnt from his friend why predator type yukkuris tend to be bodied more often than the usual, and his giving of the whole 2 litres proved to be a trigger. Flan proceeds to thoroughly punish the 6 yukkuris, though she doesn't kill them, and happily reunites with Meiling afterwards.
Weeks later, the two yukkuris have joined Anon as his family, having earned their silver badges and studying for their gold ones under his friend's platinum Yuuka. Both are extremely fast learners, and Meiling also gained a body. Anon is determined to protect this happiness.
OMAKE
The six scum yukkuri wake up to see a human standing before them, and immediately refer to him as 'geezer'. However, when he says he won't give sweets to those who are rude to their saviors, they change their tack, though not perfectly, lured by his offer of making them his pets.
30 minutes later, they're introduced to his pet Meiling, whom he wants them to play with. Patchouli checks that Meiling is his only yukkuri, then informs the rest of the plan to hold Meiling hostage. The human reminds Meiling not to break them, and then leaves the room.
The yukkuris begin by taunting Meiling, who yawns disinterestedly. Enraged, Reimu tries to ram Meiling, who easily dodges, and puts Reimu's eyes out with a single headbutt. Chen tries a quick attack while Myon pulls out a branch. Meiling dodges again, grabs Chen by the tail and swings her around. Chen's tails tear off, and she flies at Myon, resulting in Chen's eye getting pierced by the branch while the other end stabs painfully through Myon.
Patchouli directs Marisa and Alice to attack from both sides, but Meiling simply jumps up, causing them to crash into each other, and proceeds to hop back and forth on top of the two. Patchouli is in disbelief over the events occurring in front of her, but reacts in fear as Meiling approaches, smiling. With her braids, Meiling proceeds to pummel Patchouli.
The human comes back, and scolds Meiling for not wiping herself off afterwards. He revives the scum that he'll make them his pets if they can satisfy Meiling, saying that it wasn't only a one time thing, and adds that there were other yukkuris before them, but all broke without managing to survive until the end.
He empties the bag with him, various accessories smelling of death, belonging to the yukkuris that Meiling punished before. The human explains that his Meiling lost her family to scum like them before he adopted her, and was unable to forget. Coincidentally, that family of scum appeared, and Meiling slaughtered them all before he could do a thing.
He tells the scum that no one will care if they're gone, unlike his easy Meiling. They realized that they're actually weak... unable to compare to the Meiling they forced to hunt for them, and thus got strong. In the end, they all die from one body slam from his Meiling.
After that, Meiling was recommended into a 'Scum Punishment Squad' by her owner's friend, and they work on an on-call basis to eliminate scum yukkuri.
The write commented that the Omake went longer than the real story, beyond his expectations.