Lyn Saavedra (Nadine Lustre) is a passionate professor in U.S., but after a misunderstanding brought by a scandal, she was sent back to the Philippines in order to be saved by her father who has a respectable position in the Department of Education and thus stations her in St., Aubrey's Academy to continue her work and falls under the supervision of the terror Algebra Professor, Ryon Domingo (James Reid). What relationship does the two formerly have and will they be able to work in harmony for the sake of the students?