I was pretty effy about time-traveling, but after reading and finishing the entire manga a lot of things were explained, although sometimes it feels as if there is a plot hole in here somewhere. But if you read it a couple more times then it might make more sense
A manga dedicated to one of my all-time favorite characters! I was really happy when I found out about Mosaic after I had finished reading Mirai Nikki.
This is better than the main series.