Doubutsu Byouin no Ofutarisan

Takaha, a veterinary student, finds a stray cat that needs help and rushes it to an animal hospital...where he falls in love at first sight with Baba, the director. Trying to get closer to him, Takaha gets a job there, and Baba's flirtatious behavior inflames his feelings till he can no longer repress them... A slow burn age-gap BL story about a straightforward younger veterinarian and his complicated boss!

(Source: Seven Seas Entertainment)