The series depicts the concept of sacrifice by showcasing characters making difficult choices and prioritizing the greater good over their own well-being or desires. Sacrifice is portrayed as an act of selflessness and bravery, emphasizing the importance of personal sacrifice for the benefit of others or a common goal. The sacrifices made in the series may be for love, friendship, family, or to protect the world from impending danger, illustrating the depth of character and the strength of their convictions.