•••••

https://booktoki334.com/novel/5916?stx=%EB%82%B4%EA%B0%80+%ED%82%A4%EC%9A%B4+S%EA%B8%89%EB%93%A4 you're gonna have to use translate though

alternatively https://www.readlightnovel.today/the-s-classes-that-i-raised/chapter-149