About the Fact That the Loli I Raised Is the Demon King of Destruction

Me, number 9527, It is the last conscience of the "Observer" organization. And my mission target: the reincarnation of the Demon King, codenamed "The Daughter of Disaster". Execution plan: Use ordinary happiness to corrupt her. But no one told me that the Demon King of Destruction is a 148cm tall silver-haired lolita who sheds tears over strawberry pudding. No one told me that the "observers" monitoring her would be "corrupted" first. So—— When the flames of fanaticism burned towards the campus, I protected her behind me. When the final order from the organization was issued, I deleted all contact information. "Alya, remember." "From today on, your world is mine." When she reached the end of the road, she tremblingly grabbed the corner of my clothes, fear emerging in her red eyes. I sighed, wiped her tears away, and turned to face the world. "Sorry, everyone." "But her keeper is me." (This is a light fantasy story about raising, redeeming, and fighting the whole world for one person)