The Heroine of "I'm Sorry" Who Protects My Sweetheart

In order to return to the original world, he worked hard to purify the bad guys and find embryos. In the friendship of a cute boy and girl, will he choose to leave or stay? He worked hard to create villains and search for embryos just to find him. When he finds him, will he turn from darkness to light or continue to be his enemy? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.