My Brother Is Too Flirty

Mu Yunjin accidentally meets Su Shijin in his down-and-out state and is attracted by his gentle appearance, deciding to bring him back to her side. She originally intended to raise him as a docile little puppy for amusement. However, Su Shijin quickly clings to Mu Yunjin, revealing a ruthless nature outside that contrasts sharply with his innocent persona. Anyone who covets Mu Yunjin triggers his yandere tendencies, even fighting to the death to protect her, declaring loudly, 'Sister Jin belongs only to me.'