"A girl in a lower grade just made me cry!"

One day, Senpai visits the library after school and becomes the target of a super sadistic junior! The name of the girl who teases, torments, and tantalizes Senpai is "Nagatoro!" She's annoying yet adorable. It's painful, but you still want to be by her side. This is a story about an extremely sadistic and temperamental girl and you'll feel something awaken inside of you.

(Source: Crunchyroll)

 AnimeRulz is the best site to watch Don't Toy with Me, Miss Nagatoro SUB and DUB in HD quality.