Disguised as a Man, Three Heavenly Gifts and Not One Father

[One female lead, a cute baby from the future, a woman disguised as a man, sweet romance, a harem rivalry] What? The lazy prince who disguises herself as a man has three half-grown kids? And the three kids don't even have the same father?! Jiang Yanshu: I slack off, I lie flat, I'm useless, but I'm definitely a good person. Prince Regent Xiao Beichen: “I'm straight. I'm not an idiot, so I don't believe he can have children. I favor daughters over sons. No way!” War God Lu Chenyuan: “Impossible. I've never gone that way!” Richest man Gu Tingchen: “Are you short on cash, Young Prince, and trying to scam me?” The eldest son folded his arms and sneered at Xiao Beichen. “Father, I suggest you stop licking your lips at noon. You'll poison yourself to death sooner or later.” The second son brandished Lu Chenyuan's sword. “Dad, if you're bad at it, practice more.” The little girl slipped into Gu Tingchen's bank. “Daddy, give me the vault key and I'll count your money for you, okay?” All three kids traveled back in time together. None of them recognized their biological fathers, but they never expected the face-slapping to come so soon. Xiao Beichen: Jiangjiang, you just sit on the dais. I'll weather every storm for you. Lu Chenyuan: Shushu, can your husband sleep in the bedroom tonight instead of the study? Gu Tingchen: Yanyan, you wouldn't want our daughter to have a father with a mistress, would you?