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|Gender||Female(Male in the Visual Novel)|
Piro (ピロ Piro ) is a stray Siamese cat that Nayuki finds and adores, despite her allergies. Later in the story, she becomes attached to Makoto who brings her home, where she is adopted by the Minase Household.
Piro's full name is "Pirozhki", Russian for "Fried Pork Bun". Yuichi jokingly came up with this name when Makoto shot down the name "Nikuman" (肉まん Nikuman , Pork Bun), as she didn't want her to be named after food. Yuichi then convinced Makoto that it was a made up word, earning her the name.
Piro disappears near the end of Makoto's arc, causing her to leave the house and search frantically for the cat - becoming sick in the process. Sadly, she fails to find her. When Makoto disappears, she is shown lying under a tree, where Piro comes and rubs her arm.
Shortly after that, she returns to the Minase house, where she is kept in memory of Makoto.
|Main Characters||Ayu Tsukimiya • Nayuki Minase • Makoto Sawatari • Shiori Misaka • Mai Kawasumi • Yuichi Aizawa|
|Supporting Characters||Akiko Minase • Sayuri Kurata • Kaori Misaka • Mishio Amano • Jun Kitagawa • Kuze • Piro|
|Minor Characters||Kazuya Kurata • Shiori's classmate • Ishibashi • Mai's mother • Shiori's mother • Sayuri's father • Old man from taiyaki shop • Lady from Hyakkaya • Teacher of the Athletics Department • Woman doctor • Suspicious shop's old shopkeeper • Stray dog • Makoto Sawatari (real)|