Michio enters the labyrinth with Roxanne and learns more about the world. He realizes the actions he'd been taking based on assumptions have been terribly inefficient. With the knowledge he learned from Roxanne, common video game strategy, and skill settings, Michio develops a method to efficiently make money.
It goes upwards because 
the labyrinth is growing.
Das Labyrinth weitet sich nach oben aus,
weil es beständig wächst.
Van hacia arriba porque
el laberinto está creciendo.
Van hacia arriba porque
el laberinto está creciendo.
Non, les labyrinthes
s’élargissent vers le haut.
Va verso l'alto, perché sta crescendo.
Para cima, porque o labirinto
está crescendo.
Нет, он тянется вверх.
И это знак того, что лабиринт растёт.