tsun tsun maid wa ero ero desu

Eishun Makio is a good-for-nothing teenager with overly perverted tendencies. Worried about his well-being, Eishun's mother assigns his childhood friend Hariyama Kiriha to take care of him. To his dismay, Eishun is caught in the act by Kiriha. However, she herself seems to have something lewd in mind.