I find it beautiful that they get to meet again in their next lives, if Haku don't "disappear" he will have to live forever without Izuki but now they can meet again
it's kinda crazy that you all think they died... they DID NOT DIE! the cold water scene is to have him remember everything hince the "welcome back" thingy! he fell in, he remembered, they kissed, got out and lived happily ever after! in no way they would die there lol it's just obvious, not even an open ending
don't get me wrong I love this story, I love the artsyle, I love the characters but it kinda feels like the author is dragging it, too much happened in the 1st 30 chapters but then it started to divert away from the original plot, Yohan is a spy and his brother is dying yet we're seeing less and less of it with each chapter.. I'm enjoying their love but we also need to start getting some drama because it's definitely gonna happen at some point and we can't see Yohan worrying about either thing (his bro and his own safety) anymore, even after receiving the key he didn't show any signs of trying to open the room nor tell Victor although it was the perfect opportunity to!