: Shippers enjoy the trope of a cheerful character softening a cynical or angry one.
The foundation of Kacchako was laid during the , specifically Chapter 36 of the manga and Season 2, Episode 9 of the anime. While the stadium crowd booed Bakugou for being "brutal" against a "frail girl," Bakugou famously refused to go easy on Uraraka. He recognized her as a legitimate threat, famously stating that nothing about her was "frail". This moment is pivotal for several reasons: Kacchako
: Bakugou, who rarely bothers to learn his classmates' names, referred to her as "Uraraka" instead of a dismissive nickname like "Pink Cheeks" or "Round Face" after their fight, signaling his high regard for her strength. : Shippers enjoy the trope of a cheerful