Retribution in my sister's name

Twin sisters Selene and Seran grew up separated after their parents divorced when they were young. Years later, Selene has become a business tycoon, wielding immense wealth and power, with only one goal in mind: to find her long-lost sister, Seran. However, upon returning to her home country, Selene discovers that Seran has been bullied into a coma. Determined to uncover the truth, Selene disguises herself as her sister and infiltrates Seran's school to track down the perpetrators of the bullying.