VS Aliens

Synopsis

Kitaro had never really spoken with his classmate, the nice and proper, Ms. Segawa before. But to his surprise she suddenly confronts him one day out of the blue. Ms. Segawa exclaims that she has seen an alien! And that alien is none other than their mutual classmate, the cute and popular Ms. Sakuma. Sure, Kitaro thinks, right, an alien. But is she telling the truth? Is there more to this mystery or is it some elaborate prank? (Source: Gen Manga)