|Otonari Yuu音成 遊 A|
|Measurements||Height: 138cm, Weight: 34kg|
|Hair||, Red, Short|
|Body||, Kid, Short|
|Personality||, Opposite Gender Voiced|
|Visual novels||Side character - Tokimeki Memorial Girl's Side: 2nd Kiss|
|Voiced by||Kobayashi Yumiko|
Yuu is the heroine's younger neighbor who basically acts as the "info-man" of the game. <hidden by spoiler settings>Yuu also has a romantic ending with the heroine as he does have a crush on her.