Be, Betsu ni Anta no Tame ni Oshiete Agerun Ja Nain Dakara ne!

Hiroto failed university entrance exams. When he is down, two girls visit him all of a sudden. They are Tsukushi and Yui. They are sisters and hired as Hiroto's home tutors. He is encouraged to study hard again. Tsukushi and Yui, however, gradually fall in love with him and their battle for Hiroto now breaks out....