College student Shijian dies suddenly and reincarnates into a fantasy world—immediately awakening as an SSS-Rank Summoner! But when she can only summon low-tier monsters, her 'innocent' teammate betrays and sacrifices her. In desperation, she summons the heroic spirits of the legendary Heroic Squad who fell in battle a century ago. Now, Shijian navigates deadly love triangles while uncovering the shocking truth behind the squad's total annihilation.