The Brilliant Adventurer's Life of Lapin Rabbit

This is a side story of "I am going to be the Wraith-king!" https://www.webnovel.com/book/i-am-going-to-be-the-wraith-king!_19287860205904905 Japanese version: https://ncode.syosetu.com/n5673gq/ My Twitter: https://twitter.com/kinoyama_en