Love Triangle (Hiro+reader+Tadashi) #Wattys2015

Y/n y/l/n is a smart 13 year old girl who one day meets Tadashi Hamada. Tadashi falls for y/n but keeps her a secret from Hiro. Meanwhile, y/n has already met Hiro but doesn't know that Tadashi is his brother and Hiro keeps it that way. What happens when they find out secrets and will y/n fall for them or someone else?