I was summoned as a companion but iam the strongest?!

Suzuki, a high school student, is unexpectedly summoned to a magical world by Lizzy, an elf apprentice. Instead of a mystical beast, she summons a human! Trapped by an unbreakable contract, Suzuki supports Lizzy as she struggles against her peers’ scorn. But as they uncover hidden truths, one question lingers—was his summoning really a mistake, or is there a greater purpose behind it?