Blend the miso and butter in a food processor or blender until combined.
Grill the corn under medium high heat, turning every few minutes until all sides of the corn have some charring. It's hard to mess up grilled corn, so there's a good amount of flexibility here and it's pretty adaptible if you're cooking it alongside something else! If it looks good to you, it's done.
Slather the corn in miso butter (room temp is fine, or you can heat it up for easier application). Then sprinkle chopped chives and furikake all over the top and enjoy!