JOBAN DE SHINU SAIKYOU NO SUB CHARA NI TENSEI SHITA NO DE, GAME CHISHIKI DE MUSOU SURU

A man who died in a car accident was reincarnated as Silva Pierce in the world of the popular RPG Echoes of Eternity, which he had been playing before his death. Silva, the strongest knight of the kingdom with cheat-level stats, is a superb character who seems like the perfect target for reincarnation. However, he is also a side-character destined to die protecting the protagonists at the end of the very first chapter… Death events are inevitable, and if he abandons the protagonist party to run away, the world will be destroyed and game over! Silva, determined to avoid his doomed fate, begins to use his knowledge of the game in order to complete the game as fast as possible. Will Silva be able to overcome his death event and survive? (Source: Spira, translated) — Description from AniList community (anilist.co).