The second part of Chitose Is in the Ramune Bottle, a comedy romance set around Saku Chitose. In the earlier part, Saku is the most popular student at his high school, with a reputation that holds up even against harsh online attacks and a circle of friends who are as good inside as they look. His polished world is shaken when a teacher asks him to help bring back a student who has shut himself in his room for months. This part continues his story from there.