While rest and recovery are the order of most days at the Butterfly Mansion, relaxation is most certainly not. That’s not just because of Zenitsu’s constant bellyaching, but the fact that Shinobu wants to begin their rehabilitation training ASAP, starting with Tanjirou and Inosuke. The training is handled by Kanzaki Aoi, Tsuyuri Kanao, and three pint-sized masseuses.
Zenitsu is perturbed when he sees the two returning from their first session as if they had just been beaten to a pulp, but Zenitsu soon finds out the score for himself, and he’s very disappointed in his companions. Why, he raves like a madman after taking them aside, are the complaining about getting massages, playing cup games, and light sparring, all with cute girls?
Zenitsu has no trouble with the massages or with beating Aoi at cups or tag, but Kanao is another story. She beats them at everything, and handily, as befits Shinobu’s apprentice. Zentisu and Inosuke are so frustrated that they stop showing up, but Tanjirou is determined to become strong enough to beat her.
The three little lady masseuses, who have really taken a shine to the sweet, wholesome Tanjirou (let’s be honest, Zenitsu’s a creep and Inosuke’s a forlorn beast) offer him some key advice. Kanao, along with Shinobu and all the other Hashira, are practicing Total Concentration Breathing … continuously. That is, every breath, morning, noon, and night.
The girls present him with a small, extra-hard beginners gourd he’s expected to break with nothing but his breath; Kanao can break a gourd over ten times its size. But while he clearly has a lot of grueling work to do (even short bursts of breathing wear him down), Tanjirou knows he can’t save Nezuko unless he’s stronger, so he puts the work in.
His efforts don’t go unnoticed by the lady of the mansion, Shinobu, who visits him on a rooftop while he’s practicing and even getting him to blush due to her close proximity and striking beauty. Shinobu is rooting for him because she too would like to live in a world where humans and demons got along.
It’s just, unlike him, she’s growing tired of believing that will ever be possible, having been ground down by battle after battle with lying, deceiving demon opponents. Tanjirou can smell anger behind her smile, which surprises Shinobu, causing that smile to briefly fade.
She tells him how her older sister, pure of heart like him, fought for peace with demons even when they ended up killing her. Due to her love and admiration of her sister, Shinobu promised to always carry the smile her sister loved, no matter how much she might want to frown or cry.
Knowing how much it sucks to lose a sister, she implores Tanjirou to keep Nezuko safe with everything he’s got—and there’s no reason to think he won’t. While I enjoyed this episode and the added depth given to Shinobu, Nezuko’s total absence is both conspicuous and disappointing—especially with only two episodes remaining.