On planet BA-506, where a wide variety of alien species have gathered to form a massive society, there exists a dream job that every living being on the planet longs for: the “Tower.”

Six months ago, Noah was abducted from Earth and brought there. Having lost all his memories, he ends up as merchandise on the black market, and is ordered to go to the Tower as a door-to-door salesman, tasked with satisfying various alien species.

[☆★Relieve your fatigue★☆]

A mysterious milk with astonishing effects, hidden beneath a provocative uniform. And so, Noah gradually climbs the floors, as aliens eagerly feed from him…