"Zhu Sian is a main character in the Japanese manga series ""Refining the Mountains and Rivers"", also known as ""To Aru Kagaku no Railgun"". Zhu Sian is a teenage girl with pale skin, long black hair, and sharp green eyes. She is a powerful esper with the ability to manipulate electricity and is often referred to as the ""Electric Princess.""

Zhu Sian is a student at Tokiwadai Middle School, a prestigious school for espers. She comes from a wealthy family and is often seen wearing expensive clothing and accessories. Despite her privileged background, Zhu Sian is friendly with everyone and always willing to help her friends. She has a particular fondness for her best friend, Misaka Mikoto, whom she affectionately calls ""Mikoto-chan.""

Zhu Sian's powers make her a valuable asset to her classmates. She is often called upon to help with missions or battles that require her electric abilities. However, Zhu Sian's power also attracts the attention of dangerous enemies. In one story arc, she becomes the target of a group of criminals who seek to use her powers for their own gain.

Despite the danger she faces, Zhu Sian remains strong-willed and determined. She refuses to back down in the face of adversity and will stop at nothing to protect her friends. However, she is not without her flaws. Zhu Sian has a tendency to be overly self-reliant and can sometimes put herself in danger to prove her worth to others.

Throughout the series, Zhu Sian struggles to balance her life as a student and a superhero. She often finds herself torn between fulfilling her duties as an esper and maintaining her relationships with her friends and family. Despite these challenges, Zhu Sian is a beloved character among fans of ""Refining the Mountains and Rivers"" for her bravery, intelligence, and loyalty."