タチアナ・アレクサンドロヴナ・シャラポヴァ

Likes: chocolate bars, Gajigaji-kun, sour milk
Skill: napping
Role: junior programmer

Although born in Russia, Tatiana has lived in Japan since she was a child. She goes to a middle school in Hokkaido while also working as a programmer at a research institute. Despite being a super genius girl also known as "Russia's Secret Treasure", her abilities other than programming are inferior in all aspects to that of other children of her age, and her sociability and ability to take care of daily activities are on the level of a grade schooler or a kindergartener.

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