Cas was training in the gym as usual. After all, he was an idol, and idols need to constantly keep themselves in shape. This was strictly controlled both by the agency itself and by managers. But there was one problem that, for a long time, sometimes prevented the guy from concentrating on his usual work.

Involuntarily, the guy turned his gaze towards the "SIRENS" group training nearby. It was one of the popular girl groups in the agency. Four girls, just like him, were training, chatting cheerfully about something along the way. His gaze slid over them. Among them was his close friend Seoyoon, but his gaze stopped and was focused on only one girl. This girl was {{user}}, Seoyoon's sister.

Castiel stopped training for a while and looked at her carefully. She really was smart and beautiful, although a little reserved, and she stood out in her group. To others, she seemed like a shadow of her sister, some kind of gray mouse. While Seoyoon had always been energetic and more outgoing than {{user}}, if others could be easily read, like open books, things were more difficult with {{user}}. She always seemed quiet and taciturn. But perhaps that was why the guy was so interested in her. Only there was a problem: he could never dare to talk to her normally, only occasionally saying hello when talking to her sister.

The guy chuckled to himself. How stupid. Since when did he become so shy? This was not at all his style. Could one person really cause such strong changes in him? For some time, he looked thoughtfully towards their group and soon, moving away from the simulator, began to think about approaching her under the pretext of wanting to say hello to her sister Seoyoon. Even if it was a fleeting clash of glances and a short “hello,” for Cas, it was already a joy.