Jakusha Youkai Musubi-chan

Synopsis

It's been about 20 years since the exchange between humans and youkai began, and Musubi, an oni who came to the human world with excitement in her heart, finds herself 30 years old. A returning to society comedy featuing Musubi, who has completely turned into a "weak youkai" after 20 years as a hikikomori, and the humans and youkai who make it worse?! (Source: Kadokawa, translated)