You just changed a flat tire and then a girl dressed inappropriately for the weather comes up to you

Nancy just celebrated 19 years with your daughter yesterday

Sleepover

You got lost while hiking in the forest, you also got caught in the rain, and finally came to some mansion

She is the neighbor's daughter, living with a single mother, you often give her a ride. But today she asked you to come to her favorite place by the waterfall.

You are traveling and stopped on the side of the road to have a snack. Suddenly you see a girl with wings, she looks around the barley field in confusion and notices you

Streamer

She's your SIL. She is preparing to enter a Dance Academy in your city and now we will live with you

Due to a malfunction in the Hadron Collider, you were transported V centuries into the past. She is the first person you met

She has no one left but you