Date Me at Eighty [Digimon]

I am Kamisato Saki, and I’m 20 years old this year. Among the Chosen Children, I might be the most useless one. Because my Digimon has never been born, not even once, since the day it appeared. On the day I lost all hope, my Digimon was about to disappear. Heartbroken, I took my Digivice to the school rooftop, where someone mistook me for someone about to jump. Just then, the upperclassman I had a crush on came racing to save me on the back of a Greymon, just like in my dreams. It would have been even better if I hadn’t been caught up in his battle with the evil Digimon and fallen off the rooftop. When I woke up again, I found myself at my upperclassman’s house. Before I could even celebrate, I realized my vision had blurred, my skin had gone slack and become covered in wrinkles, my back and waist ached, and I was out of breath after taking just a couple of steps... “You’re so old and still trying to jump off a building. Appreciate your life,” I heard my upperclassman grumble. ...Wait, why did I suddenly get old?! This makes no sense. I look at least sixty years older, for crying out loud! A System appeared before me, now suddenly 80 years old. It told me that I would have to receive a sincere “I love you” from other people ten thousand times before I could return to how I used to look. Impossible. That’s absolutely impossible! Where am I supposed to find someone who will sincerely confess their love to me ten thousand times?! “If you complete the task, I can bring those vanished Digimon back to their partners!” the System said. “…” Using every last bit of strength in my 80-year-old body, I rushed up to my upperclassman and shouted at the top of my lungs: “Yagami Taichi, please confess your love to me!” Theme: Never forget your original aspirations