I definitely loved that ending. I really loved the manga itself too. I have to admit that he reminded me a lot of Kademono Kareshi, after all, both must follow a classic story pattern, however, obviously Kademono Kareshi has a different style of Devil Fruit from Sourou, because they are more than 10 years apart.
Well, but then again, I loved the manga, even though I was a little mad at Takeru at first, but I loved how he matured over the course of the story. And now I'm just in love with him, me and Kayano lol