|English Name||Prince Myshkin|
|Romanized Name||Mishikin Ōji|
Owner: Yuri Nazarov
|First appearance||Lost Kitten|
|Last appearance||Lost Kitten|
Myshkin is a small white kitten with large blue eyes and triangular ears, possibly meant to resemble a Russian White kitten.
After seeing him on the hood of Mireille's car, Kirika later sees him digging through the trash and decides to take him to the hotel where her and Mireille are staying in Russia. She decides to keep the kitten until eventually, while sitting on a bench, Yuri discovers the two sitting together and explains that Myshkin belongs to him and thanks Kirika for taking care of him during the two days he was missing. However, as Yuri walks away, he begins to collapse, and Myshkin falls out of his arms. Yuri is brought back to his home, where he is recovered, and as Kirika walks away from the house, Myshkin follows her.
Myshkin slept next to Yuri when he was killed by Kirika.
Prince Lev Nikolaevich Myshkin (Князь Лев Никола́евич Мы́шкин) is the protagonist of Fyodor Dostoyevsky's novel The Idiot. Dostoyevsky wanted to create a character that was "entirely positive... with an absolutely beautiful nature", someone who is truly 'Christian'. Mireille describes Myshkin as "the embodiment of a pure and innocent soul".