Don't Toy with Me, Nagatoro-san

Don't Toy with Me, Nagatoro-san is a Manga/Manhwa/Manhua in (English/Raw) language, SUGGESTIVE series, english chapters have been translated and you can read them here. You are reading Don't Toy with Me, Nagatoro-san chapters on ManhwaZ, fastest updating comic site. The Summary is

Our nameless—and spineless—hero (only known as "Senpai") is a second-year high school student and loner who spends his afternoons at the Arts Club room. He attracts the attention of one of his schoolmates, a sadistic freshman girl named Nagatoro. However, in between the bullying and teasing, something else begins to blossom. A lovey-dovey(…?) story between a shy nerd and an S-Dere (Sadistic Tsundere) begins.