Anime XXX - Marriage Blue 01

Based on a game by Lune TeamBitters. Masaharu and Sayaka are getting ready for their wedding. Misato, Masaharu's sister, is in charge of the planning and preparations, along with her partner Kaneko Ryuuji, whom they have known since college. Everything seems to be going well, but Ryuji becomes interested in Sayaka after seeing her in her wedding gown. Ryuji takes advantage of Masaharu's absence and starts to make Sayaka his when he is busy and unable to attend one of their meetings due to work.