Shota Aizawa and Oboro Shirakumo were Class 2A students together back in the day at UA.
This video charts their full history, including how Shirakumo helped his friend decide what kind of hero he wanted to be.
Content is from the Vigilantes spin-off manga and also the main MHA manga.
Other VIGILANTES videos:
Captain Celebrity Explained: /watch/oQisEJnIsy0Is
Knuckleduster Explained: /watch/s1RHIjVc0XkcH
First arc of Vigilantes Explained: /watch/cQqquJRB2ZYBq
ART in this video:
Shirakumo, Aizawa and Present Mic on the steps: https://twitter.com/hexamendle
Aizawa and present mic in UA gym uniform:
Aizawa, Present Mic and Shirakumo walking: