Just How Many People's Moonlight Is A Yue?

My new story is out, "Please, Toji, Become My Brother-in-Law." The blurb is at the bottom. Blurb: My name is Tokito Tsuki, and I'm an "ordinary person" with memories of a past life. Thanks to a diary that can predict the future, I've changed many people's fates, and... racked up a huge debt of admirers. A certain blond childhood friend: "Thank you for helping me back then. I remember every word you said, and every time you were happy or sad, it made my heart race. Actually, ever since 'that incident,' I've always had a soft spot for you..." A certain gravity manipulator: "Before I met you, my world was dark. You were like a glimmer of light, barging into my life without a care, then disappearing just as suddenly. Actually, ever since 'that incident,' I've never been able to forget you..." A certain Six-Eyed Divine Child: "I still remember the strawberry cake, the fireworks, and the swaying hairpin from that year. I remember the slight sweat on your palm because you were nervous. I remember you telling me, 'Don't worry, I'm here.' Actually, ever since 'that incident,' I've always wanted to see you again..." So... what exactly was that incident they keep talking about?! Reading guide: 1. The story is told in third person. Anyone who should be brought back will be brought back. 2. The heroine is seven when she appears, and the timeline spans a long period. Romance comes in the middle or later part of the story. The love interest is Rei. 3. The heroine is warm on the outside and cold on the inside, an acting ace and a max-level, straightforward type. Her cheats are Heavenly Restriction and Breathing Techniques. Upcoming story blurb: After his wife passed away, Toji lived with his sister-in-law Kayo and his son Megumi. His sister-in-law was, well... To him, she was a lazy, shameless, messy little brat, but somehow... Every one of her exes was madly in love with her. The young master of the Atobe conglomerate stood by the door with a bouquet of roses, looking confident and flamboyant as he produced a diamond ring the size of a quail's egg. "Where's my fiancée? Hm?" Toji: "Wake up. She dumped you. Go home. You can... leave the stuff here." A cat-eyed public security officer with a mustache rang the doorbell. "Kayo's been coming home really late at night lately. I'm worried. How about I move in with you?" Toji: "You stalker creep. Stay away from my Kayo!" The white-haired Six Eyes man complained angrily, "She went on a date with another man behind my back! Aren't you going to do something about it, big brother?" Toji: "Calm down. You broke up ages ago. She can do whatever she wants now. And don't call me big brother, and stop watching her!" Were all these people crazy? Toji couldn't figure it out. Even if he didn't understand, he had to do his duty as a brother-in-law and protect his "little Tang Monk" from being carried off by demons and monsters. Theme: Be a good person