Two-dimensional characters can come to our three-dimensional world, but can't we three-dimensional humans venture into the two-dimensional world? Well... Even though I was forced to obey; even though I was treated as a guinea pig for experimental tests; even though I was still full of reluctance at the beginning. But——I can't stand the dreamy beauty of the second dimension! However, the two-dimensional world was too... Actually not that different from what he imagined. What was hard to accept was that the guys in it were too aloof. But as the only human being invited to enter the two-dimensional world, he has to overcome all difficulties, at least to erect a statue of himself here! The protagonist's two-dimensional promotion story is about to begin. Friends, please sit tight in your little spaceship and watch! As for the explanation of stupidity... Let's see and understand.