: "Why Oxygen and Nitrogen Are Irreplaceable." It covers the discovery, subatomic structures, and critical roles these two elements play in Earth's atmosphere and biological systems.
: The Kazemai Kyudo Club prepares for the final match of the tournament. The episode focuses on the "Tsurune" (the sound of the bowstring) and the deep, irreplaceable bonds formed between the teammates as they face off against Kirisaki High.
In this anime series, the title "Irreplaceable" marks the conclusion of the Kazemai High School Kyudo Club's first major journey.
: You can find this episode on platforms like Apple TV or Amazon Prime Video. 2. Tsurune (Season 1, Episode 13)