Mimi Mix!

"It is a truth universally acknowledged, that a high school girl in possession of dog ears, must be in want of an owner." In the not too distant future, when living animal ears can be transplanted to people, dog crazy Hikari has a pair of dog ears and has convinced her beloved Inukai-senpai to get a pair as well. But there may be side effects... This is the same world as Usa-bility and Mimi Mix! and we're back to girls dating girls. As always, it's complete fluff and super cute. (Source: MangaDex, edited)

Usami-chan has always wanted a pair of rabbit ears, and she finally managed to have a pair grafted. Will Mikura-kun think she's cute? But there's just one problem... she's suddenly become very 'sensitive'. For fans of Mimi Mix! - this is the same world, but it's not yuri. Four chapters total. It's the minimum possible ecchi, everything is off camera - maybe two milli-Toloverus.