Karin vs Platonic Twins

Recently I found a place at downtown were the ancient arcade machines exist even today, and I found the original arcade cab of the Gowcaizer game with the original game in it! Wow I couldn't resist to insert one coin and play it like the old Jr. High days So when I get home, desperately I meda some drawings of the Gowcaizer characters and watch the first OVA episode. And this is the result of that inspiration.