The serialization of "L・DK Pink", the sequel to "L・DK", has started! Aoi and Shusei, who met in the spring of their second year of high school, are 23 years old and have been living together for seven years. Aoi is the chief of Cafe Cougar's 3rd store in Japan, and Hiiragi is involved in the planning and operation of a very popular sitter app, leading a fulfilling life. Aoi began to think about marriage as both of their jobs started to get on track. One night, something surprising happened to her...?