Little Miss Debaucherous

Prim and proper Ayano is head over heels for Hasegawa-sensei, her Japanese teacher. But when her (undeniably hot) English teacher catches on to their affair, he threatens to spill more tea than the Boston Tea Party unless she wholly submits to his every whim...

(Source: Irodori Comics)

Note: Chapters count includes chapter Extra1.5, Soushuuhen 1 kaki oroshi, Extra 2, Extra 4, 4.5, M Extra, 5 Extra, 6 Extra, 8 Extra, 9 Extra, 10 Extra.