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When I opened my eyes, I found myself lying on the rooftop of Shiya Demon High School, with the familiar arrogant laughter in my ears. Looking down at the baggy black stand-up collar school uniform on his body, he saw that it was very good. After traveling through time, it was still the worst high school. "Devil Daddy"? I'm familiar with it. Just stay away from that plague god Oga Tatsumi. However, the next second, a purple lightning split the sky and hit me accurately in my arms. The swaddled bald baby smacked his lips and burped at me: "Dah?" Me: "..." Wait, this plot is wrong! Shouldn't the son of the Demon King look for Oga? ! The little thing in my arms suddenly reached out and pressed its chubby fingers on my eyebrows. The cold magic pattern spread all over the body instantly, and the devil's contract was forcibly established. Oga's furious roar came from the distance: "Which bastard stole my little brother?!" I hugged the hot potato, looked at my hands that were starting to glow purple, and fell into deep thought.

"Notice No. 233 Of Hell's Office in the Human World: Due to the negative growth of Hell's population and the soul harvesting indicators that have not been reached for a hundred consecutive years, 'experiential management' is now being implemented. Lucifer, the seventh-level executive officer, is required to adopt a human cub, observe its growth process, and write a parenting observation report of no less than 100,000 words..."