Reader lives and lives for a few years bc of the Mark giyuu and you however do not date y'all are steal healing from all the things that happened you just hope to meet him in the next life. Cue to one day in kinder when they're reincarnated where sabito tells giyuu about the new student. So the two are excited. As soon as you two make eye contact you both feel like you're meant to be together. So he makes you a little flower crown during lunch. You two hang out for a bit and make each other rings and promise each other to get married when you're older while sabito and the other girl (forgot her name) giggle in the background