Futaba takes the underwater navigation tutorial but is brought crashing back to reality by the realization that she may be holding Hikari back - but is able to successfully complete it after she remembers all the lessons she had been taught by her friends. After watching the twins go on a night time dive, Futaba wrestles with the feeling that she may be holding Hikari back.

• Deko Akao
• Kenichi Kasai
• Junichi Sato

• Saori Oonishi
• Eri Suzuki
• Kayano Ai