Kemonokko Tsuushin The Animation Episode 4

The episode revolves around Takeshi, a man who summons a tanuki girl named Pokora (or Pocola) from another world. Pokora struggles with her transformation abilities and is bullied in her homeland for her failures. Takeshi decides to "train" her by having her wear various sexy costumes (e.g., bunny suits, swimsuits) to improve her focus and resilience