At the start of the book, Emori Kunihiko battles depression after his breakup. Though a stranger shows him kindness, Emori responds with hostility and obstinacy. The book includes two distinct short stories concerning a salaryman's interaction with twins. The series' concluding section highlights Emori's desire to explore beyond his comfort zone fueled by the outgoing personality of Makishima Atsushi, resulting in a greater appreciation and gratitude for life. However, Emori faces difficulties in convincing Makishima to comply with his requests.
