Anyamaru Tantei Kiruminzuu

Synopsis:

Rimu, Riko and Nagisa are three sisters who live with their family in Kamiha City; lighthearted and bubbly, the trio spends their days attending class and watching over the household’s pets while their mother frequently leaves on business trips. However, one day their lives change forever when Rimu and Riko make their way into the attic, finding strange devices that activate and turn into animal costumes! As if this isn’t strange enough, when the girls act like the animal of their costume, they physically turn into the creature as well! Unfortunately for Rimu, Riku and Nagisa, others have arrived in their town for nefarious purposes, and it seems to have something to do with these devices…