After waking up to breakfast at Yachiyo’s sad, lonely, empty boardinghouse, Iroha decides to do a little more exploring around Kamihama before heading home. Her unyielding desire to find Ui literally leads her down the wrong road, in this case a sketchy underground market populated by witch-like beings.
Yachiyo warned Iroha to be cautious and hide her magical girl identity, but within a minute of arriving at the market, she meets another magical girl, Felicia Mitsuki, and the two drink a mysterious “Lucky Owl Water” offered for free by the beings, which they market as a “distillation of joy” to anyone who drinks it.
The Felix Felicis-like bevvy sets in immediately, with Felicia easily dispatching a witch, Iroha treating her to ice cream, and both of them getting good luck messages on the sticks. They hit the arcade and casino to let that good luck ride, winning at everything they play and raking in the cash.
Cash that Felicia needs, by the way, as she was orphaned by witches and must take care of herself. She labels herself as a mercenary, offering her not inconsiderable witch-hunting skills in exchange for cash money. As the two celebrate their luck, numbers everywhere gradually count down from 24, portending doom.
Meanwhile, there’s another new old face in Kamihama: Sakura Kyouko, from the original series. She’s still fond of perching on roofs and is looking to kill some witches. Yachiyo, who encounters her, tells her there’s plenty of witches to hunt as long as she abides by the rules: no harming other magical girls, and no poaching.
Both Felicia’s on-again, off-again party and Yachiyo learn through Yakumo of a new rumor of Lucky Owl Water, as well as the catch: after 24 lucky things happen to the drinker, they start experiencing bad luck, at least until they drink more Owl Water. It’s basically an addictive drug, only instead of affecting your body or mind, it affects your luck.
Yachiyo and Tsuruno meet up with Iroha and Felicia in order to find a way to cancel the effects of the water, which Yachiyo believes can be achieved by destroying the main body of the Uwasa, or rumor. But first they have to find it, which means returning to the market where Iroha and Felicia first encountered the water pushers.
Predictably, they offer nothing but more Owl Water as a corrective, and Felicia loses her temper and lashes out at them, causing them to disperse. Yachiyo laments that Felicia didn’t just drink more water for now, in order to buy them more time to find the Uwasa.
Instead, Felicia and Iroha are down to 13 lucky events before shit starts going down. The quartet are soon surrounded not by witches, but mysterious girls in black cloaks who all finish each other sentences and call themselves “Wings of Magius.” Like the magical girls, they want to destory all witches, but they go about it in a very different way.
When these Wings fail to recruit the magical girls, they appeal to Felicia’s constant need for income and offer to hire her as a mercenary. Her reward will be what her wish to Kyuubey probably was, but is naturally yet to be achieved: revenge.
Iroha had already hired Felicia to help her find Ui, offering her a home-cooked meal, but I think she just got outbid, and Yachiyo is proven correct about the dangers of getting involved with someone who puts their own desires before the safety of her peers.