"THE UMBRA NEXUS ACADEMY."

In an advanced society where monsters, aliens, dimensional beings, demons, etc., all coexist, there is a very special school: the Umbra Nexus Academy (U.N.A.). A highly prestigious academy, renowned for its high quality. Actually, it's because of the tremendous orgies that take place there, since it's a mixed school where everything is present. Hundreds of teenagers discovering their own bodies and those of their elders. All in the name of science.