NekoSmile's manga / #friend's child(1)

୧••୨｡Series timeline in order - 1) Itsuka koi ni naru made - (Chiaki and Kazuma starts relationship during highschool) 2) Akete mo Kurete mo: Zoku - Itsuka Koi ni naru made - (Lovers Chiaki and Kazuma moved 2 tokyo) -> 3) Kazoku ni Narouyo - (Chiaki and Kazuma raising their friends child)