Yan Bingyun used chains to lock Shen Wan 'er in her room in " Celebrating Years," restricting her freedom. This chain was described as light but as hard as a rock, making it impossible for Shen Wan 'er to escape. Yan Bingyun often came to accompany her, and this relationship was described as " very sultry." Thus, the iron chain was used to restrict Shen Wan 'er's movements.
Cheng Jushu was in the iron chain box. Cheng Jushu was an eighth-level ace in Northern Qi. He had been sent to assassinate Fan Xian. He was tied up in a large iron box and smuggled into the Imperial City. Cheng Jushu had the characteristic of being extremely strong in the movie. He almost overturned the carriage with just a move.
The recommended novel with the male lead chained up was " The Confusion of the Escaped Queen." This novel described how the male protagonist grew up in the palace. He endured hardships and tried all kinds of tricks. He seized the throne overnight, but was chained up by the Empress and locked in a cave. If you like palace fights and time-travel novels, then this novel is not to be missed.