Potion wa 160km/h de Naderu Mono!: Item-gakari no Ore ga Bannou Kaifukuyaku wo Touteki Suru Koto de Saikyou no Boukensha ni Nariageru!? @COMIC

Overview

Vino, a member of the A-class adventurer party Assault, is a potion user, the weakest and lowest level job. He meets a beautiful swordsman named Canadia, who is known as the God of Death. He was kicked out of the party and nearly died in a monster attack, but Vino awakened by chance with the single-minded desire to protect her! He discovered his own strong shoulders and a new way to use potions, even throwing potions to blast monsters to pieces.

Source: AniList