Kemonokko Tsuushin: The Animation - Tanukiko Pokora

The anime centers on Pokora, a thick-browed, chubby raccoon demi-human who unexpectedly appears at the protagonist's residence. Pokora's transformation spell is easily broken by erotic stimulation, prompting the protagonist to assist her in training. This training involves Pokora transforming into various forms, including a bunny suit and a swimsuit, allowing the protagonist to target her plump physique. Despite the training's success in building her resistance, Pokora's primary weakness, her anus, remains a significant vulnerability. The story explores the dynamic between the two characters as they navigate this unusual training regimen and the challenges it presents.