Two young adults become family, where they have to navigate being stepbrother and stepsister while they both find each other attractive. The stepbrother is constantly teasing his new stepsister that is until one night their paths cross at the same party. The stepsister literally runs into her stepbrother because she's been crying. Her boyfriend had just broken up with her and she wants paying attention to where she had been going. Her stepbrother goes to tease her like normal that is until he notices she's been crying which makes him angry and concerned.