Haebom lost his parents and was taken in by his mother's friend. Taesung, the son of Haebom's mom's friend, is an estranged son who was impulsively taken by his mother from his grandmother. Taesung's strong rejection to be brothers with Haebom, despite their close friendship, led to years of being distant to each other... until Taesung and Haebom becomes classmates. A few bumps and obstacles along the way, Taesung and Haebom went through them together, even until their employment.
im feeling bittersweet because ive only read it now, but at least i didnt have to wait too long to read until season 4.
Cherry Blossoms After Winter