If you're looking for manga similar to Classmate no Tanaka-san wa Sugoku Kowai, you might like these titles.
Saeki is an ordinary high school boy with a girlfriend, Sara, who is the heiress of the Saionji Group, and whose beauty and intelligence are the envy of everyone. Sara seems like a prim and proper young lady to other people, but the two share a secret! Because of the secret, Saeki can't fully commit, but Sara prepares lunch for him, she hugs him to deepen their relationship, and she acts like she's trying to seduce Saeki to corrupt him!!!? What is the secret of their relationship and what is Sara's true purpose…!!?
Kuroi-san’s always doing something all by herself after class. And even though she makes sure no one bothers her, one day, a certain person happens to find out what it is she’s up to… and next thing he knows, he’s declared her accomplice?!
Miyako, who had quit her job and returned to her parents' house, had a matchmaking story. However, the other party was a former colleague who knew various secrets.
Nishiga Hachi plays the leading role in this comedy about living a day-to-day life with her friends.
Regardless of what they will say and without fear of falling to the bottom of the social ladder within the school, Otaku-kun does not hide his great fondness for adult manga, which earns him the rejection of his class just in the moment. first day of class; however, Sasha, far from feeling aberration at her hobby, shows a peculiar interest, thus starting a relationship... mentor-student?!