@Merilirem the shape and texture of the specific type of omelet made like this in the square(should be more rectangular) type of pan is a little different than the typical omelet. it's not just about the square pan https://www.youtube.com/watch?v=g8Rk1ABFtoQ it's the recipe and technique used in making it.
but it doesn't HAVE to be a square pan, the square pans just make it a little easier
halfwayish through this video, they show using a round pan https://www.youtube.com/watch?v=qLlLvhbivPs
@Sep10trion kind of? the plot is in the title "Slowlife" dude runs around living life how he pleases and makes some things from modern japan to make his life "easier" in the world, he is in now.