Gigant Vol. 2 (manga)

MY GIRLFRIEND IS LARGER THAN LIFE

For Rei, the impossible already happened when he met PaPiCo, a gorgeous porn star and the subject of his every fantasy. The fact that she's wound up with the power to grow to truly gigantic proportions is only the tip of an ever-stranger iceberg. The world sees a new anomaly every day, all of them orchestrated by a mysterious website called "E.T.E." It offers its users the opportunity to vote on how the world will end, one disaster at a time. Can Rei's budding, forbidden romance survive this weird apocalypse?