The Yhwach boss in Project Mugetsu is a limited-time boss who will only be available to fight for the next few weeks. You’ll need to be there on time for a chance at fighting him. Project Mugetsu Yhwach boss starting times and how to join To join the Yhwach fight in Project Mugetsu, you will have to be at the Soul Society, Wanden, or Karakura at certain times on certain days. You’ll be teleported to the boss fight with everyone else on the server. This makes Yhwach a limited-time raid boss, so try to take him down at every opportunity. Here is a list of all the starting times for the Yhwach fight: 19th May – 12 to 1 PM EST 25th May – 3 PM EST 2nd June – 11 AM EST There are only two more opportunities to fight Yhwach, so if you haven’t made one already, then you’ll need to make sure you can attend one of the later ones. Image: Osiris Productions This boss is incredibly tough, so you’ll have to really take th...