(Y/N) Hamada and Tadashi Hamada - both are smart, had obtained multiple awards for discoveries and inventions, rivals, absolutely not related no matter what the news said and now...neighbours! Too bad (Y/N) hates Tadashi's guts. But that changes when Tadashi confesses he's attracted to (Y/N) and wants to seduce him in fifteen days before Valentine's Day. Hah! Like that'll work. Right? Disclaimer: technically this isn't mine and the original author basically fell off the face of the earth so there was no way of reaching them so I hope they aren't too mad. This was also originally a hiro x tadashi fanfic from like 2015 so yeah I still think it's really good though and I'll be adding some tweaks here and there