Nakamura sensei doesn't do happy co-incidences like that. It might make people happy to think he's still alive, but the impact of his death leaves a much deeper wound on our senses. I don't believe she would throw that away just to have him show up at the house of kyoko, who would be a complete stranger to him. No, that man is Sho, just being polite to a person who not only being the person taking care of kyoko, also has no reason to expect an arrogant celebrity to be knocking on her door asking for kyoko. If anything, he would want to make a good impression on her current guardians so he would have more access to her.
Haha Yeah that is true he doesn't really have a motive to be stuck up towards her. Im just not use to seeing him be so polite and it took me a while to realize that he was at kyoko's house. My friend also had already explained that is as actually shou. So I just came here to see if i could delete the comment,but then I saw your explanation/reply and it was very helpful so i just wanted to thank you for taking the time to explain it. I really appreciate it. ^ω^
I believe that might be Ren's/Kuon's old friend from his past named Rick. Im all we know is that he got hurt severely and never got any direct indications that he was actually dead. So in this case its quite plausible that it could indeed be his friend Rick