Responses
Yes. I was confused as well. He was married to Minori, whom Ruka had seggs with. He purposely went to the place Ruka went to, to find Ruka. He just wanted to see who the person was that Minori was attracted to. He did what he had planned the first time his intention wasnt to ever meet with Ruka again but Ruka found him. So he accepted Ruka, invitation and I guess waited for Ruka to tell him he had been with Minori. He drugged him erased his contact from Ruka's phone took his watch and left.
I’m still confused on the second story’s ending. Like did the black haired dude disappear from his life?