Yukimura Is So Laid-Back After N Loops

By the usual definition, I'm a lucky person. They say that when Heaven bestows a great responsibility upon someone, it first makes their heart suffer and their body toil... By that logic, I'm someone fit to shoulder a great responsibility. All right. I lied. I'm not someone fit to shoulder a great responsibility. Because I have a "fixed objective" to complete. I have to take the place of an unlucky guy named "Yukimura" and follow his story. I have to win a match for him. It's hard to say whether this match is difficult... But this is the Nth time I've suffered through this plotline. Honestly, I want to give up. Just as I was about to complete this plotline, I saw my junior secretly practicing tennis. He was clumsy... All right, he wasn't clumsy. He'd just lost to me 99 times, and kept stubbornly coming back to challenge me for the hundredth. I thought about it, and decided to grant his wish. When he finally won for the hundredth time, he cried. He hadn't cried after losing to me 99 times, but now he was crying. I panicked. I asked him what was wrong. He said nothing, only looked at me with misty eyes. There was stubbornness in his gaze, and something that seemed like hurt. I couldn't quite tell... because I didn't dare look him in the eye anymore. I couldn't say a word. I heard him call me a "big idiot." What was he talking about? He's the idiot... Before I could retort, I saw him run off. Oh, right. I forgot to introduce myself. My name is Yukimura, Yukimura Seiichi. That idiot is Akaya, my junior. The 101st time he challenged me, I beat him. P.S. The main story is in third person. Updates are irregular, so enter at your own risk. There is no 16+3, and no victory. This scene will not appear either. See the author's note in Chapter 1 for the rest. Theme: Accept whatever outcomes come, good or bad.