The fantasy SRPG Gin no Toki no Corona follows ETERNAL’s previous title, Tenkuu no Yumina. Touka isn’t a normal student: he has the ability to sense and interfere in the purple-lit space known as ‘shinya’ (true night). One time in shinya, he met a strange girl named Tokino who also had the same ability as him. Then a woman named Murial descended from the skies and entrusted a small girl Corona to them. Even though she is an innocent girl right now, she is a dragon girl who possesses enough power to destroy the world. Murial tells them if they raise Corona right then they will be able to save the world from ending.