[ It's a sound enough argument, and if Atsumu had been delusional enough to believe that Yima was doing this without any gain at all it might sway him some, but... ]

Never said she wasn't gettin' something outta this too. Just that she wasn't forcin' anyone to help her. She took a gamble on us, and considerin' she's the only one that's managed to save people from an exploded world, my bet's on her bein' the one that can keep the whole thing from endin' for good.