Dansui! (2017)

Sia il film No Breathing sia il drama Dansui! hanno confermato come argomento principale il nuoto---

While "Dansui!" is a short drama, "No Breathing" is a movie. However, both are based around male competitive swimming and the trials and tribulations of injuries, coaching, competition, rivalry, and friendship.

Both very similar, they talk about boys who train to swim to achieve their dream.
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While both deal with swimming, 'Taiikukan Baby' has romance undertones where 'Dansui!' does not. Both are movies focused around swimming and the struggles swimmers face.