You have a very good point here, the social isolation experienced by Marine for being ugly and nerdy made her give into really questionable choices such as becoming a meganoid, to finally obtain a more attractive physique. It's very sad that she saw no other way out....
I totally agree with you. I just wish they made a U.S. release for Daitarn 3 on either Blueray or DVD. Outside of Japan, the only version available for purchase is in Italian. Apparently Daitarn 3 was wildly popular in Italy when it first came out and it still is today.