You and I Are Polar Opposites is a high school romance manga. I bought my copy of this volume new.
Review:
In this volume, we meet Nishi, a super shy girl who enjoys listening in on conversations but who can't bring herself to participate. Her efforts to hide her laughter at funny things that come up in others' conversations attracts the attention of Yamada, Suzuki and Tani's hyper friendly classmate. Meanwhile, Tani and Suzuki spend more time together, which results in Suzuki getting to see Tani's home. Then it's time for the school's cultural festival...and a teeny tiny bit of drama, as Suzuki's ex-boyfriend (sort of?) from middle school stops by.

