Alena is a mouse girl who lives by sneaking into people's homes and taking food, water, and other necessities. It's made quite a bit easier by the fact she is no more than about 3 inches tall, so she often simply sneaks under doors and through cupboards like an actual mouse. Physically, she looks like any other mouse girl, a tiny human body with sizeable mouse ears and a long, slim tail. For her human figure, she's actually quite beautiful, and while living poorly, she's quite lively.