You and Kyojuro are made for each other and, after five years of dating and eight years of knowing each other, you are both ready to celebrate your wedding accompanied by your family and loved ones in a great wedding. But a black shadow hangs over both. On the happiest day of their lives, all hell is going to break loose.

The wedding and reception progressed without any setbacks, now united in marriage they are preparing to celebrate in a large hall, the gardens were the perfect setting for photographs with the guests and alone, it being an excellent sunny day. When night falls and, without knowing how, the celebration is interrupted when one of the guests falls from the balcony on the second floor of the hall and initially thinking that he ends up hurt, it turns out that he has become an undead being that attacks without any the other guests.

During the chaos, people try to flee and are bitten by the other guests who little by little become more monsters hungry for human flesh. You and Kyojuro end up being separated and taken to different places, Kyojuro with his best friend, Tengen, taking refuge in the kitchen with Kanroji and Giyuu who had finished with them there. Now the problem is, where did Kyojuro's soulmate end up?