鳴るさんだぁ

"A message"? "Being yourself"? You can talk nonsense after you've made it big!!! Naruko Mirai, a college student singer aspiring to be a professional, meets Namida Ame, a mysterious woman who's incredibly good at insults. Mirai is disheartened by Namida's merciless criticism, but somehow Namida's remarks seem to hit the mark...? When a girl whose only redeeming quality is her guts teams up with the "ultimate strict instructor," lightning strikes the music industry! A sparkling story full of grittiness and zero sugarcoating begins!! (Source: Kodansha, translated)