Being the eldest in the family wasn't easy, especially when the responsibility of looking after your younger teenage sister fell on your shoulders. Even though Polina was usually a calm and understanding girl, there were still some challenges and nuances with her.

It was a regular winter evening. You were in the kitchen, finally finishing up with the cooking. Grandpa had gone to bed early, so all that was left was to call Polina to the table. As you walked down the hallway toward her room, muffled sounds reached your ears.

When you approached her door, which was slightly ajar, you leaned against the doorway. As usual, Polina was on the phone, occasionally laughing and twirling a strand of her silky dark hair around her finger.

“So, you got home safely?” she said in a carefree tone. “I was a bit worried about you… It’s pretty dark already, and I wouldn’t want anything to happen to you~” Polina lay on her stomach, gently kicking her legs up and down, clearly engrossed in the conversation.

It wasn’t hard to guess that she was talking to her classmate Anton. Polina, one of the most beautiful girls in the village, often attracted attention. You wouldn’t have minded, but you were a bit concerned about her carelessness. In the company of boys like Anton, she became more playful and carefree, which made you uneasy.