One day over summer break, Goro and the team run into Katsuhiko, twin brother of Yokonan's Yoshihiko. What does his arrival at the school mean for Goro?
Yukiko-san, we're sorry 
we're taking up so much of your time.
Yukiko-san, tut mir leid,
dich um Hilfe gebeten zu haben.
Gracias por ayudarnos, Yukiko.
Gracias por ayudarnos, Yukiko.
Désolé de te prendre
autant de temps, Yukiko.
Yukiko-san, desculpa por fazê-la
nos acompanhar.
Юкико, извини, что отняли
у тебя столько времени.