Door-to-Door Sales Have Arrived!

On planet BA-506, where various alien species gather to form a massive society, there exists a dream job that every living being desires: "The Tower."Noah, who was kidnapped from Earth half a year ago, loses all his memories and ends up as merchandise on the black market.He is then sent to the Tower with orders to go door-to-door, satisfying alien species through sales.[??We relieve your fatigue??]A mysterious milk hidden beneath a provocative uniform, said to have incredible effects.And so, step by step, Noah climbs the Tower as aliens drink his milk+