S1, E4: It is entrance exams season. Kotoko passes the entrance exams to Tonan University. On the other hand Naoki reluctantly goes to take the National Center Exams as an obligation to his father. Because of Kotoko's hand-made good-luck charm, Naoki's day of exams is riddled with troubles. Then on the day of entrance exams to Tokyo University, Kotoko tags along with Naoki, but collapses at the gate from a severe stomach pain.