Ee, Nouryoku Nashi De Party Tsuihousareta Ore Ga Zenzokusei Mahoutsukai?! summary:

Though magical abilities should awaken in anyone, Tyler, an adventurer, has yet to have awaken his own abilities awaken for some unknown reason. Because he is unable to use magic, he is left behind in the depths of a dungeon by his party leader. However, when facing against a perilous situation involving his childhood friend Ariana, who stayed behind to help him, his hidden power awakens! What he obtained was unprecedented – the ability to use all magic attributes. After safely escaping the dungeon, Tyler hears about an herb that can cure his sister’s illness, and sets a goal to challenge the super-advanced dungeon, forming a new party. A different world fantasy of running up to the strongest party with girls who believe in him starts!!