Asobi ni Iku yo! is a Japanese light novel series written by Okina Kamino, which was adapted into an anime. The story follows Kio Kakazu, a high school student whose life turns adventurous when he meets Eris, a cat-like alien girl. The series combines elements of science fiction, comedy, and romance as Kio and his friends protect Eris from various threats. It's a lighthearted exploration of interstellar diplomacy and friendship.