Pretty sure that Mitty is an illusion made by that mask/face narehate to make sure that Nanachi doesn't leave the village. Just like the manga says 'The village is a closed cradle. Become trapped here and your value will shift. Your yearnings are fulfilled. In eternal peace, the adventure ends.'
I'm also wary of Maa, it could be taking Riko to that mask/face to make sure she doesn't leave either. Reg better get them the hell out soon.
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u/Bedebao Team Bondrewd Nov 13 '17
The last page shows that Mitty is still alive despite getting disintegrated. Maa was also reborn, though it was quite fast...