Did 30 with a half squad and no paid stuff. Not nearly as impressive as no Ls, but I'm happy.
https://files.catbox.moe/b1zaxo.mp4

>>1768013
Whip Platina has it in her awakening bonuses. Cretta and Ateru have it naturally. Ateru grants it to allies during skill if she has her weapon. Wiwi can cure it on deploy, but only deploy.