Can anyone help me find this yaoi manga?

I can't remember how many chapters it is, but it's about this old (?) man asking this detective kind of guy about what happened to this prostituted that he vowed to marry years ago, but he's too much of a wimp to get him back and left the guy. The prostitute is called "hoshiko" I think, because of all his beauty mark sprinkles all over his body.

I think hoshiko ended up being a ghost or a vision because he was forced to get married to someone he doesn't love and committed suicide.

The vivid things I remember was the bar got abandoned and opened up on Thursday.

There might be errors all over since I read this a few years back, but it still stuck in my head-