aww...! very sad, but very well written... it makes you value life a lot more :/ Definately go into Evie and Niko's relationship some more. Maybe put in their ages at the beginning of the story, so we get the setting out right away.

Aw, I like the characters. They're cute. I'm sad she has cancer!!

I like this! You have a nice style of writing and I'm curious to see what happens next. Not really any constructive criticism to be given here, I'll wait to see what happens next chapter. Keep writing!