I Was Reincarnated as the 7th Prince so I Can Take My Time Perfecting My Magical Ability Episode 7 SUB at Gogoanime

Synopsis: The kingdom has been infiltrated by a girl named Ren from the Assassin's Guild.. Upon learning of her special ability as the Poison Blighted, Lloyd tracks her back to her hideout, sneaks in, and is attacked by a group of assassins with unique abilities. (Source: Crunchyroll)