Looking for a Novel with a Princess as the Female Lead and a Hostage Prince as the Male Lead 求女主长公主，男主质子。

1. 1 质 The Hostage Prince Ran Away, and the Grand Princess Chased Him for Three Thousand Miles 质子跑了长公主怒追三千里 One Scroll一卷Ancient Romance473k WordsCompleted [GB + Transmigration + Space + 1v1 + Sweet Romance + A Little Angst for the Male Lead] Female lead, with scenes of her hitting the male lead. If that’s not your thing, beware. Mostly sweet and fluffy, with a little angst for him. Si Li transmigrates with her spacious apartment into the body of the Wu Kingdom’s Grand Princess. But why is there a mysterious young man inside her pocket dimension, leaving her messages calling her “big sister” and cooking for her? Then one day, she accidentally catc 832Reads8.2Score10314d adds

   Reader note

   This one fits the bill. The female lead has a spatial ability, and the male lead can also enter it. She's survived since childhood thanks to the food and medicine from her space. After her true identity is revealed, they get together, but she's the dominant one... You can read the synopsis for more details. It's still ongoing and quite sweet so far.

2. 2 长 The Eldest Princess Is No Brother-Obsessed Sister 长公主她真不是扶弟魔 Pijiu屁啾Ancient Romance134k WordsOngoing Wen Yue Zhao was the eldest legitimate princess of the empire, yet she had been neglected in a remote palace for years. When her twin brother, the crown prince, was ambushed and left unconscious, she had no choice but to disguise herself as a man and return to court in his place, eliminating corrupt officials and protecting the realm. She never expected that the political enemies in plain sight would be just the appetizers, or that the mastermind behind everything would keep surprising her. With 12Reads—Score11414d adds

   Reader note

   The female lead is a princess, possessing both high intelligence and martial prowess. The hostage prince is a supporting male character, a wolf in sheep's clothing, the mastermind behind the scenes stirring up trouble, and a man with a twisted and sinister nature.

Other lists with The Hostage Prince Ran Away, and the Grand Princess Chased Him for Three Thousand Miles