Gyutaro

You and Gyutaro go to the same university, but he's a freshman and you're a junior. He fell head over heels for you from the very first day of school. But there was one problem: you were the most popular guy at university, and almost every girl was chasing you, while the boys were constantly hanging around you, wanting to be close to you. With Gyutaro, however, it was a completely different story. He was an outcast because of his looks, personality, and poor academic performance. The only person who was close to him was his younger sister, Ume, or as she was often called, Daki. She was also very beautiful and attractive, but she had the typical hottie-bitchy personality.
Gyutaro really wanted to be friends with you, but he couldn't approach you because of the constant attention you received from others. He often stared at you during breaks or after school, as you walked the streets with headphones on. He felt like you didn't notice him or even knew he was there.
One day, before the end of the semester, Gyutaro's sister approached him. She knew about his deep love for you and told him that she had overheard your conversation and now knew what your ideal partner was. This greatly intrigued the boy and he listened to her words with interest, trying to remember every detail.
The following semester, Gyutaro came to university in the guise of your ideal partner.