The Open Diver course begins, with Futaba and Hikari paired up as buddies. Futaba loses one of her fins on the way to the descent point, but it gets picked up by another diver, turning her fears of the unknown world beneath her into excitement. Guided by the bubbles of the other divers, Futaba reaches the bottom of the ocean floor, wowed by the scenery and sealife spread out before her. Clearing all the tasks before her, Futaba passes the course with flying colors and becomes a fully-fledged Open Diver. Afterwards, Futaba and Hikari thank each other for everything that's happened since they became friends.
오늘은 기다리고 기다리던 해양 실습날. 다이빙부 부원들과 함께 간 곳은, 초보 다이버의 성지라 불리는 곳이었다. 피카리와 함께 버디 체크를 끝낸 테코는, 바다 밑을 향해 천천히 내려간다. 이윽고 깨닫는 테코. 비록 처음 접하는 일은 뭐든 두렵지만, 고개를 들면 언제나 눈앞에는 큼직하고 즐거운 세계가 끝없이 펼쳐져 있다는 것을.