The Hedgehog Principle

Su Qing and Gu Ran end up living under the same roof because their parents absurdly decide to switch partners.

The two stepsiblings, who aren't related by blood, discover each other and find themselves irresistibly drawn together. When they realize that they truly love each other, they also discover a chasm between them that seems impossible to cross. What will they do in the end? Will they be brave, or will they back down?