Matsu goes to Tokyo with the sumo-stable located near Reiko-sensei’s home, because why else would he want to go to Tokyo anyway?  Matsu however quickly angers his fellow sumo acolytes and professional senpais with his boorish disrespect.  But never mind them, he must first visit Reiko-san ...
In other words, once you get accustomed 
to the traditions of our sumo world,
Wenn du dich also an
 die Traditionen des Sumo gewöhnst,
En otras palabras, si te acostumbras 
a las tradiciones del mundo del sumo,
En otras palabras, si te acostumbras 
a las tradiciones del mundo del sumo,
Ou seja, se você se acostumar 
às tradições do nosso mundo,