1PON-010518-628 Hikaru Tsumura: Even if you take off your pants, you won’t take off your glasses!, Erotic smart tutor. Tsumura plays a young tutor who teaches at home to a lazy boy who has not studied well according to his parents’ needs. However, no one is perfect, you gain one thing and you lose another, so even though she is a very good tutor, she has a flaw: she is addicted to sex.