Source of Sister

This is an inquiry about "how humans and the remnants of divinity coexist." ——The remains of gods drifting in the sea of ​​"source", and their fragments have imbued human souls. This is the "Wedge of God" - both a gift and a curse. Do you choose to use "engraving" as a tool to move towards a "future" full of glory and alienation? Or should we regard it as a part of ourselves and return to the thick and ancient "past"? Or... Like (?), Longing to use the power of engraving to "cut off" all painful connections and embark on a pure and crazy path of "aloneness"? All answers will be dyed with blood and hope in the light of the "Anchor Trial". Ps: This book is also called "The sister I thought was yandere seems to really want to kill me"