In the anime and manga series Kimi ni Todoke, Ando, whose full name is Keisuke Ando, is a minor character known to his friends and classmates by the nickname Andy. He is a student at Kitahoro High School, attending the same class as the main protagonist, Sawako Kuronuma, and her love interest, Shota Kazehaya.

In terms of appearance, Ando has dark hair and dark eyes. His hairstyle is similar to Kazehaya's, and he is frequently seen as a background figure in the classroom, often in the company of his friends, including Kazehaya and another classmate referred to as Joe. His role in the story is very limited, as he is not a central figure in the main plot, which focuses on Sawako's social growth and romance.

Regarding his personality, Ando is generally well-regarded by his female classmates, who consider him to be a great guy. This positive perception is shared by Sawako, who once expressed her belief that he would be a perfect match for her friend Yui, a sentiment with which others agreed. This serves as the primary notable plot point associated with his character, as Yui is mentioned to have a crush on him later in the series. There is no detailed information available about his background, personal motivations, significant character development, or any notable abilities. His function in the narrative is largely as an unnamed or background classmate, part of the wider social circle that populates the high school setting.