[Crossover] Make Me Jump!!!

I used to be the head of an intelligence organization closely connected to the Vongola's Vindice Prison. My codename was Alice. I'm retired now. While on the job, I was conscientious and responsible, with no bad habits, except that every now and then I'd hurt myself without meaning to. That's not good, so please don't imitate me. For personal reasons, I've now joined an international criminal organization where everyone uses a liquor name as their codename. Mine is Martini. I'm naturally very sensitive to all kinds of information. So sensitive, in fact, that you could call it a "superpower." Whether it's the slightest movement, someone's breathing, or a change in the wind, I can easily glean a wealth of intel from it. And yet, despite being practically all-knowing while remaining unknown to others, I met my lifelong nemesis when I was ten. Me (holding out my hand): Hello, Decimo. I hope we work well together. Vongola: ...Wh-what happened to your wrist...? Me: Hm? Can't you tell? It's a scar from a failed attempt to slit my wrist. Pretty obvious, isn't it? Vongola: ... Me: ... After that awkward meeting, I thought my interactions with Vongola Decimo would be limited to business from then on. Of course, that was just what I thought. Whenever I can't help wanting to find out what would happen if I jumped, some annoying hedgehog-haired guy suddenly shows up to stop me. Even now, after I've retired and returned to my hometown of Beika. I turned to look at the brown-haired young man gripping my wrist behind me. The confusion and frustration I'd suppressed for ten whole years finally erupted: "Please, just let me jump!!!" #I love the dawn when 'I' don't exist# Warnings: 1. Third-person narration, bottom, 1v1, CP 27. They are five years apart, with the man being older. 2. Life is precious. Please do not imitate the protagonist's actions! They really can be fatal! 3. Crossover, mainly Katekyo Hitman Reborn! and Detective Conan. 4. Updates whenever inspiration strikes. Theme: Family