Last Kiss

is a Japanese light novel series written by Kei Sato, with illustrations by Hitsuji Takanashi. The series began publication on August 10, 2002 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
"If I die, I'm sure my brother will cry--" Yuka Izaki, a second-year junior high school student suffering from a serious illness. She was temporarily discharged from the hospital during the summer vacation, and writes in her diary the memories of the summer she spent with her brother Tomohiro, who had little contact with her, and Natsoo, also known as "Kanne". I had my brother buy a hat, I went to the Alpine Botanical Garden in Kobe, I went to Suma Beach with my lunch and went swimming. However, in casual days, my feelings toward my brother gradually change. Tomohiro has no way of knowing the swaying faint love. And Natsoo who knew Yuka's feelings. The ending came with a sad event ...