His Majesty Has Transmigrated Here Too

Lu Xuanhe transmigrated into a book after a car accident. The System required him to raise the frail little emperor properly, and once the child had grown up, he would have completed his mission and be free to leave. From then on, he diligently raised the child, focused entirely on getting back home. As it turned out, barely a month after he completed the mission and transmigrated back out of the book, lightning flashed and thunder roared, and his little charge appeared in front of him again.

Little Emperor: Why?! The Imperial Astronomical Bureau said you left of your own accord. Is that true?!

Lu Xuanhe: ...

Lu Xuanhe: I hated to leave you too, but over there you didn't have phones, computers, air conditioning, refrigerators, Wi-Fi, or mobile data. I really just... couldn't take it.

The little emperor's eyes turned red with anger. "What are those things?! Did you... did you take a concubine here?!"

Lu Xuanhe: ???

Little Emperor: Liar, liar, big liar!

Lu Xuanhe: ...I didn't! I swear I didn't! You're making things up!

Lu Xuanhe x Lin Huaizheng

Ancient-era regent and modern entertainment company owner top x ancient-era little emperor and modern all-purpose assistant bottom

P.S. There are entertainment industry elements, but His Majesty does not act professionally.

Theme: Study hard