After Being Possessed, I Offended All of the Three Kingdoms

[Primarily Three Kingdoms, with cameos from other dynasties] Possessed by Yuan Shao, I read Cao Cao a proclamation denouncing a traitor. Possessed by Cao Cao, I read Zhu Yuanzhang a ridiculously bad passage about Sun Quan. Possessed by Sun Quan, I take the high-speed train to steal the offerings from my rival's shrine. Lu Sitong's vision goes black. Black marks on her record: +99. Zhou Yu, Zhuge Liang, Du Fu, Tang Yin, Ying Zheng, Xun Yu, Jiang Wei... Ghosts from different eras quietly awaken. With nowhere else to go, the ghosts stay at her house and learn about the modern world. Lu Sitong: "Sure thing, wifeys! No problem!" The great ancestors: "???" Zhu Yuanzhang and Sun Quan bond over a shared experience: "What a coincidence, your crown prince died young, too." Yuan Shu and Cao Pi reach a consensus: "The grape milk tea from Mixue Bingcheng is the absolute best!" Ying Zheng and Liu Bang argue over video call: "You shameless bastard, whose Imperial Seal are you claiming this is?" Tang Yin and Zhong Hui team up to forge documents: "Let's go swap out the silk manuscripts at the British Museum." Then some youngster tries to explain things to Liu Bei: "Comrade, have you heard of Shu Communism?" A trove of important cultural artifacts suddenly appears in the house: A signed copy of Cao Zhi's Rhapsody on the Luo River? A straw hat made by Liu Bei, the same model as an LV one? Tang Bohu's painting, Guan Yu Riding a Motorcycle? A drone made by Huang Yueying? My friend, you really can't keep these! Hand them over! Every last one! The museum director stares coldly in silence. "Get out." "Oh no, I tripped on the flagstones! I'll only be able to get up if the Chancellor / Little Phoenix / Beauty of the Nation / Fragrance of the Nation / Qilin Child / Ah Xiang / Yunmei / Little Deer / Ant / Brother Zhao / Eldest Nephew / Princess Grape / Little Conqueror / Little Tiger / American Wolf gives me a hug~" The great ancestors: "Stop acting crazy here!!" * Primarily the Three Kingdoms, with cameos from other dynasties. Lots of historical RPF references and jokes. Don't read if that's not your thing. * Equal-opportunity outrage for the Han, Wei, Shu, Wu, and Jin dynasties. Don't argue about fandom loyalties. Follow the records where they exist; where they don't, feel free to imagine and improvise reasonably. * Parallel world, modern setting, no romance. The crazed banter and wild jokes are not a love story. * Looks like she's the group's punching bag, but she's actually everyone's darling. An ordinary fun-loving character. About choosing between official history and Romance of the Three Kingdoms: If official history doesn't include the Oath of the Peach Garden, Diaochan, and the like, I use the novel's version. If the novel portrays Zhou Yu as petty and narrow-minded, I use the official historical version. Unofficial stories like stealing a bride or scattering flowers in Zhouzhou are so well-known that I include them. And so on. Theme: Make up for regrets