Maid Kyouiku Botsuraku Kizoku Rurikawa Tsubaki Extra Quality Better [ Exclusive Deal ]

Tsubaki cannot win overnight. "Extra quality" means watching her endure humiliation for 50 chapters before her first small victory. The payoff is proportional to the suffering.

If you’ve been avoiding this because the premise sounds like generic "villainess training her maid" slop— maid kyouiku botsuraku kizoku rurikawa tsubaki extra quality