Transmigrated to the Future as an Antique

On his first transmigration, Xu Jinqiu transmigrated to a world of cultivation. But after surviving his tribulation, he didn't enter the Immortal Realm. Instead, he arrived in the future... After entering the Federation, Xu Jinqiu became a highly valuable antique: the only living ancient human. Ancient Script Deciphering Association: We want him. Institute of Biological Genetics: We want him. Ancient Cultural Ruins Research and Preservation Association: We want him. Science and Technology Management Committee: We want him. Zhou Huaisheng, a five-star general of the Federation, then handed Xu Jinqiu a marriage contract. Xu Jinqiu raised an eyebrow. “I don't want to sign.” “You don't have to,” Zhou Huaisheng said calmly. “If you think you can handle the consequences.” Xu Jinqiu looked out the window. Warships packed the entire sky. Fair enough, this marriage proposal was certainly sincere. Zhou Huaisheng continued, “The Federation won't allow a ‘dangerous object’ to exist without surveillance. Or would you rather have me be your guardian? From now on, you'd need my signature for everything you do.” Xu Jinqiu: ... ● Zhou Huaisheng (seme) x Xu Jinqiu (uke) ● Set in the future; all the worldbuilding and such is made up. ● The uke is an immortal who has already ascended, so his golden finger is ridiculously overpowered! He's the very definition of unscientific! Theme: No matter how much you achieve, stay humble.