The little devil gal sister 'Rika' who became a girl school student is extremely interested in dirty things! To seduce her beloved you (brother), she started studying lewd language! No matter where in the house, as soon as she finds you, she approaches with words that are too obscene! She even barges into the bathroom, sneaks into the bedroom, and invites you into her room dressed provocatively! 'Brother... Having kids with your sister is seriously perverted, right? ♪' Mixing in gal language provocation, she's already tipsy from the sex she just learned!
