Morikawa immediately appealed yo me because I really like the way she looks. Shallow? Maybe, but you gotta start somewhere haha.
I think I like her because she's a mix of various other idols I like. Appearance-wise she reminds me Adachi Rika, whereas her smile and quirkiness give me Koike Rina vibes.
However, after seeing her more and more in various TV shows I'm ditching that concept and I'm liking Morikawa for who she is and not who she resembles. She's turning into a strong and confident character. I hope she can maintain her girly appearance and not turn into a sports-nut and become an overly muscular girl. It wouldn't fit her small frame.
She doesn't seem that popular (yet?), so I do worry about her future. I think a spot in Team 4 is the most likely option. Either way, we haven't heard the last of Morikawa!