This was one of the cutest things I've ever read! I loved the ending - how you got to see the kids as high school graduates and hear about their lives a bit. And the fact that Ai and Hayate stayed together and signed their names into the family register and are planning on having children. They met their soulmate and fell in love at 2-4 years of age and stayed together. That's fucking adorable! So, that was just a detail I loved. I really hoped they'd do something like that, but I didn't wanna get my hopes up too high. I loved the main story so fucking much! I will re-read this. Although, it did have some triggering themes (a cat died in front of them, bleeding heavily, which was just awful!). But it was mainly just romance, fluffiness and comedy. It had an amazing ending. 10/10
Hosaka-sensei no Ai no Muchi