AKA “these idiots are falling ass backwards into a relationship”
Collegenatural au, ft. some one sided ColonelloTsuna (? can it even be called that? It’s just an incubus who wants to eat souls)
Still primarily R27 though. it’s near the end
Tsuna walked out of the room to see the Ominous Black Book out on the coffee table as his roommate unrolled a large sheet of paper. Upon hearing Tsuna’s approaching footsteps, the roommate looked up and gave a smile.