Ep. 7: Iori veranstaltet eine Party, um seine Beziehung zu Chisa zu überprüfen, gefolgt von einem Doppelten-Tennis-Spiel gegen Peek a Boo.

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After passing their German test, Iori's classmates decide to have a party at his place in Grand Blue to check if he actually has a relationship with Chisa. Shinichiro tries to hook up with Nanaka, but ends up running into several naked men instead. As the crew are about to drink, Chisa appears, creating an awkward moment for Iori. The next day, Tinkerbell challenges Peek a Boo to a doubles tennis match to get revenge for the humiliation their Captain incurred at the festival. Shinji and Ryujiro destroy their opponents with raw power, but Chisa stumbles when the club's compliments make her feel embarrassed about her tennis outfit. Finally, Iori shows surprising skill at tennis, but his partner Kohei can't even hit the ball over the net, forcing Iori to take drastic action to win the match. With their extra winnings from the match secured, the club plans an outing to Okinawa. (Source: Wikipedia)