The Emperor's Lady-in-Waiting Is Wanted as a Bride: Volume 3 by Kanata Satsuki

Now that she’s engaged to Sidis for real, Lyse settles into her new life in the Razanate Empire. One of her first orders of business is hosting a matchmaking soiree for bachelors and bachelorettes from nearby nations who wish to follow in her footsteps. Little does she know that one of the young noblemen in attendance, Seren, actually has his eye on her! That isn’t the only case of puppy love, however. In fact, it’s going around! People all over the imperial capital have been turning into adorable doggies! What’s a lady-in-waiting to do?