Yoshimi's friends and Masao's friends**** Not Yoshimi. He might not love Momoko but he loves his children.
Yeah, in Kent's part, Masuo briefly appears getting scolded by Akane for losing to Ryoko. He will leave the scene once fight begins. He doesn't appear in Anko's part as it happens when Masuo wasn't in that college of course. But that can be changed in Magic Ring. You will be able to change one thing there (not making Anko your girlfriend of course).