Hachinantte Sore wa Nai Deshou! (The 8th son? Are you kidding me?)

Hachi-nan tte, Sore wa Nai deshou! (八男って、それはないでしょう！), also known as The 8th son? Are you kidding me? is an anime series based on the light novel of the same name written by Y.A. and illustrated by Fuzichoco.