As the wedding preparations intensify, Masaharu and Sayaka find their future plans intertwined with the efforts of his sister Misato and her longtime partner Ryuuji. After Ryuuji glimpses Sayaka in her wedding dress, subtle shifts begin to stir within their close circle during the shared planning sessions. When work keeps Masaharu from attending one of the meetings, Ryuuji steps in to help, leading to quieter moments that draw the pair closer amid the mounting excitement and unspoken emotions.