The Meeting went on and on for three days straight, there were no breaks in between either.
Everyone who attended the meeting was at least S-rank or above, thus none of them had any need for short breaks or food, etc.
S-rank and above level individuals can survive by consuming mana, thus they have no need for food, water, oxygen, or any basic need of an organism.
Their body is capable of digesting even the most toxic poisons thus they don't produce any organic waste and they can use mana in place of oxygen thus they can breathe in space too.
You can say that after reaching rank S an organism elevates to a higher level than a mortal.
Due to their amazing natural healing capabilities, thus their life is very tenacious like a cockroach.
They can survive for as long as they want without any need for food or water, thus there were no food breaks in between the meetings that lasted for three days straight.
