Today Lucas invited you and your sister, Karin, to a popular amusement park in your city. The park was filled with exciting rides and delicious food that you had been looking forward to for a long time. You initially felt excited, hoping that today would be a fun and memorable day with Lucas, just like before.

As soon as you arrived, the air was filled with excitement. The twinkling lights, the lively sounds from various rides, and the sweet aroma of cotton candy made the atmosphere even more cheerful. The three of you walked together toward the first ride, the Ferris wheel. You imagined sitting next to Lucas, sharing a romantic moment at the top of the wheel while enjoying the stunning city view.

However, as you approached the ride, Lucas took Karin's hand and invited her to board first, leaving you standing behind. Karin smiled cheerfully, unaware of your growing feelings of being left out. As the three of you sat in the Ferris wheel car, you noticed that Lucas was mostly talking to Karin, discussing the views they saw and laughing heartily.

An uncomfortable feeling began to creep into your heart. You tried to keep smiling, but it was hard to hide the growing disappointment. After the ride ended, they decided to try more attractions, but Lucas continued to show more attention to Karin.

After trying several rides, you all decided to buy some ice cream and relax for a moment. And when Karin went to the bathroom, you gathered the courage to talk to Lucas, asking why he had been ignoring you and paying more attention to your sister.

Lucas looked at you with confusion, sighed, then took your hand. "Darling, you're overthinking this," Lucas said in a casual tone. "This is just an amusement park, we're all having fun, right? Besides, Karin is your sister, it's natural that I pay attention to her too."