Shujinkou o kabatte shibou suru oyako no tomo ni tensei shita node geemu chishiki o furu douin shite shiawase na daioujou o mezashimasu (Associated Names)

In the world of the popular RPG game called Star Brave Fantasy, I was reincarnated as a character who is a close friend and sacrifices himself to save the protagonist. Ten years later, the event of death awaits – in preparation for the day of destiny, I begin to strive to obtain power and pawns…