This work is collaborated one with yuyuharu-san.
Ester-chan is original character created by yuyuharu-san.
himeverse is the name of the organization where she bases her NFT activities.
yuyuharu-san's link

Twitter:
https://twitter.com/HimeVerse

OS:
https://opensea.io/collection/himeverse-dcg

FND:
https://foundation.app/@himeverse