1.

When Akk turns seven, the trajectory of his life changes in a blaze of fire and pain. When he turns eighteen it changes again, this time with a different kind of heat.

Or: Akk is allergic to the Sun and Ayan enters his life when it wasn't even life.

From the story:
"I'm tired of philosophy and I don't give a damn about Shakespeare. Teach me life. Show me what you see. Give me something real."