Tomoki Sakai

Driven by a childhood fascination with Youichi, this middle school sophomore serves as a dedicated member of the MDC. As a talented diver gifted with "diamond eyes," he approaches every underwater adventure with a relaxed, self-paced attitude and a genuine passion for the sport. While he may appear easygoing on the surface, he possesses a hidden, unbreakable resolve that fuels his determination during every dive.