From Yaoi Is Life:

You know...I was in love with you. There was a reason for Chika, employed and hosted at the gay bar “Mr.”, to not be able to return to his hometown. It has to do with one of his childhood friends, Kyouhei, but...?

Besides the title work “Tonight, at Mister“, also contains an unnumbered chapter « Welcoming Morning » and the story describing the adult love of “Mr.” owners, Yuudai and Momo, “Goodbye Mister”.