My Ex-Girlfriend Got Married After I Died

I was found dead in my rental house for five days. At that time, my ex-girlfriend's wedding was very grand and lively. My lover finally married someone else. But I am completely dead, and only my soul is left alive. Five days ago, I suffered a heart attack and died on my bedside before I could seek help. When my body was found, my soul was finally able to leave this dead rental house. I flew out of the room, to another city, and into an auditorium. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.