I Think I'll Hide My True Ability to the Last Moment.

Yuno, the third son of a noble family of knights, faced a daunting challenge as he tried to tame his natural talents in a world where striking bargains with God bestowed extraordinary powers. His struggles earned him the tag of "incompetent." But, destiny had other plans as Yuno secured admission into a prestigious academy for magical knights and crossed paths with an unknown god, who was also burdened with the same label. Moved by a profound surge of motivation, Yuno forged a pact with the divine entity, naming her "Athena," and vowed to elevate her name to greatness. With this newfound purpose energizing him, Yuno became determined to take his training to new heights.