Underworld King

In the distant future, an experimental virus was accidentally released by the USA government. The virus only affected a few people and put them in a coma. A little girl known as Christina caught the virus. Unbeknownst to her family and the doctors, they mistakenly think it's a new brain disease. Years go by, and the family's finances are strained. Her brother, Mars, is ruined by the situation. Though his academics are top-notch, fights become more and more common for him. One day, an underworld mobster from Russia meets the young man, and offers him a deal.