"Whatever causes night in our souls may leave stars." The story is not mine

Bokkuroo: "This idea popped up unexpectedly in my mind a few weeks ago and it ruined me so much, I had to write it down. I didn't intend the story ending up this long and so emotional, but here it is. The title is Rainbow Veins by Owl City. Please listen to it, you'll need it afterwards. Update: Sorry if the layout of the fic seems a bit rough. I'm still a newbie to this website and yeah. I will try to fix it anytime soon. ((Also changed the warnings. Don't complain now that you haven't been warned.))" (See the end of the work for more notes.)

Story isn't mine full credit goes to bokkuroo archiveofourown.com is where I got this from

Yamaguchi is transfer student and meets a tall blonde man. (You'll never guess who)