Nirvana manga volume 1 features story by Jin x Sayuki (ZOWLS) and art by Sayuki.

Death is Just Another Volunteer Opportunity!

Humanitarian-extraordinaire Yachiyo Hitose gets a once-in-a-lifetime chance to volunteer overseas - but things go awry when her plane goes down and she dies! When she wakes up, it's not in heaven, but in a whole other world known as Gulgraf - the citizens of which think she's their goddess reincarnate! Goddess or not, Gulfraf is beset by ravenous creatures known as the Blau and Yachiyo simply can't turn her back on her new home. A new adventure begins in this endearing portal fantasy!