S-Class Boukensha ga Ayumu Michi ~Tsuihou Sareta Shounen wa Shin no Nouryoku "Buki Master" de Sekai Saikyou ni Itaru~

Haise, a young boy with an unidentified talent, sets out on an expedition with his childhood friend Sasha. His team expels him for being a burden because he cannot use his gift, leaving him to continue alone. After Haise falls into a trap and faces a perilous situation, his “Weapon Master” talent awakens just as he is about to die. It lets him summon weapons from another realm, a power said to disrupt the world’s laws. His journey begins in hardship in another world.