Tsugumomo | Episode 7

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One day Kagami Kazuya, an ordinary boy, encounters Kiriha, a beautiful girl in a kimono. It turns out Kiriha is a tsukumogami, a spirit, whose true identity is the precious obi Kazuya carries around as a memory of his late mother. All kinds of bizarre things unfold in this supernatural action comedy!

(Source: Funimation)