Saigo no Door wo Shimero!

After his best friend and longtime crush Toshihisa Saitou marries a woman, Atsushi Nagai decides to drown his sorrows at a bar. There, he becomes acquaintances with Kenzou Honda, a friend of the bride, and the two spend a strange night together. The next morning, Nagai is shocked to learn that Saitou's bride has run away on her wedding night with her secret lover Torn between the desire to comfort his longtime love and his blooming feelings for the man he just met, Nagai struggles to make sense of his turbulent desires. [Written by MAL Rewrite]