Men's bathroom

On the first glance, it's just a regular bathroom. But once a month, the Shinigami Men Association meets there. The manliest men of whole Gotei 13 gather here to devise ways of becoming even manlier. Their goal is to become so manly they'd die of testosterone poisoning. They ended up meeting here after the SWA kicked them out of their storage room, proving that all the testosterone in the world isn't enough to face the wrath of Ise Nanao.