I kinda had mixed feelings about Makoto's ending but I was really sad when Sekai died
Makoto kept forcing Sekai while she tried to get him and Kotonoha together. And from there on he keeps leeching onto every female that is willing and doesn't cause a scene, even going back to Kotonoha when she is willing and Makoto has no one else to turn to ._.
My jaw really dropped after Kotonoha sliced up Sekai, and that she wasn't pregnant
I'm guessing Kotonoha dies on that boat out in the ocean, thinking of Makoto