All the Beautiful Things

[Watty's Longlist 2018!] The story picks up with two teenage boys, Everest and Calum. Everest has monochromacy, complete color-blindness. He also has a monochromatic personality: he feels no emotion. Calum, on the other hand, feels quite a bit of emotion. He is very bubbly and quite the optimist. However, he lives in an abusive home that takes a toll on him.
When the two boys are in the lowest places in life, fate (and a wall) brings them together. Calum's life goal becomes to make Everest see color. The two boys bond extremely fast as they cling desperately to each other.