Monkey see, Monkey do

Young Diana has a normal family. She has one sibling, Dan Dan. He's abusive and doesn't seem to care about his adorable sister. He's a bad influence and even causes her real pain, but yet she doesn't know that somewhere deep down her brother actually loves her. The love finally shows one day when her brother leaves her to stop a dangerous situation, Diana who loves her brother has to deal with the heart-ache of him leaving her. She goes through hardships and feels quite alone. Will Diana make a straight path to a good future?