Lucky Star began as a manga by Kagami Yoshimizu. The series centers on four main characters that are in their first year of high school: Konata Izumi, Kagami Hiiragi, Tsukasa Hiiragi, and Miyuki Takara.

Konata is an intelligent, athletic girl but she’s a lazy student, mostly because of her obsession with manga and anime and her otaku lifestyle. This is an unconventional, slice-of-life show based on a 4-panel comic strip manga that depicts the daily life of easygoing Japanese high school girls in a very amusing way.

Sojiro proposing to Kanata, is a flashback seen in the episode The Yonder Here. The image shows Sojiro prosing to the young Kanata in the park during the sunset. Though her life was cut short, the image shows how important Kanata was to Sojiro, despite his perverted attitude.