Ajin no Usagi-san to Hare-kun

Synopsis

One day, a demi-human maid with rabbit ears suddenly arrived at the home of Hare, a modern-day elementary schooler who loves video games! She's a mysterious being who is just a little bit "off." While she works her hardest at housework, she's always spinning her wheels. To make matters worse, she gets way too close for comfort, and her sense of scale is totally glitched out—Hare's heart won't stop racing! Even though she's a total klutz, for some reason, he just can't help but want her by his side. (Source: Kadokawa, translated)