Set the sous vide cooker to 53.3°C / 128°F to preheat the water.
Place the wagyu in a vacuum seal bag and sous vide for 3 hours. For a thinner cut of wagyu, sous vide cook for 2 hours.
When the wagyu is done, take it out of the bag and pat dry.
Put the skillet over high heat and add the olive oil.
If you want to season the wagyu steak, you can season it with salt and pepper before searing.
Sear the wagyu steak on all sides for 30-45 seconds each to get that golden-brown tasty crust.
That's it, all that's left to do is to enjoy your "melt in your mouth" wagyu steak!