Shin no Jitsuryoku wa Girigiri Made Kakushite Iyou to Omou

A world where you can form a pact with gods and gain skills. Born as the third son of a famous knight family, Yuno was so busy controlling his innate power that he was eventually called "incompetent.". However, in the magical knight academy, where he was enrolled for some reason, he fulfilled his fateful encounter with an unnamed god who was despised as "incompetent" like himself..
Yuno, who formed a pact with the goddess and named her [Athena], secretly decided to make her the highest god, and decided to get a little more serious.