Uesugi is in Soccer Team KZ with Wakatake and Kuroki and attends the same schools as Kuroki and Kozuka. He is characterized with a pair of glasses. He keeps a calm face and does not show much emotion in front of others. He is not honest with his feelings and can get embarrassed when he says something out of his normal stoic personality. In The Backyard Knows, his eyesight gets worse as a result of an eye disease. His chance of a successful surgery is 50% and he is conflicted whether or not to do the surgery. After consulting Kuroki, he goes to Switzerland to have surgery on his eyes. The surgery is successful, and he returns to Japan with his eyesight cured. It is implied in the anime that his love interest is Aya.
He is known as "Uesugi the Number Whiz" because his strength is Mathematics. He is the Analytics Expert of Detective Team KZ.
Voice Actor: Nishiyama Koutarou
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