Yaritai Onna Tsundere Teacher

Main character attends preparatory school at summer. His English teacher Haruka is always very strict. There is also Kana girl who attends the same classes and who likes kissing while still being a virgin. One day protagonist forces Kana to fellatio without knowing that they are being watched by teacher Haruka. Soon boy is called to Haruka sensei room where he gets reversely harassed. Which relations will he pursue? Or, perhaps, both?