I understand that Kazuya likes Mizuhara more but your family seems to be opening to the idea of Ruka and she isnt payed to like you its time to jump ship instead of comlaining about how it is a bad situation
What is there to even like about Mami was know nothing about her besides she is jealous MC got a rental girlfriend? Makes no sense that she is way over the other girls unless you think the others are so bad Mami is default at the top due to lack of development.