Joou Erika no Kagai Jugyou: Houkago before after

Pink fur coat and high heels... There is a rumor about the flashy teacher Erika-sensei. It is said that students who are called by Erika-sensei after school become like a different person... She elegantly solves the problems of students at school!

(Source: Flower Comics, translated)

Note: Includes one extra chapter.