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

Synopsis:

A little child named Haise has been endowed with an unidentified talent. Along with his childhood buddy Sasha, he embarks on an expedition, but he is expelled from the team for being a hindrance and unable to use his gift. In addition, he encounters a trap and finds himself in a perilous situation while continuing his solo quest. As he is about to die, Haise's "Weapon Master" talent comes to life! It is a force that summons weaponry from another realm and disturbs the laws of the world!? An unparalleled fantasy that starts with hardship and takes place in a different universe!