Skills Cost Life? What Am I Afraid of If I Have Unlimited Lifespan?

Lu Ming traveled to a world invaded by games and awakened to become an SSS-level professional destiny master. However, what greeted him was not warm applause and cheers, but ridicule from the whole room. This is simply because when the SSS-level Life Contract Master releases his skills, he needs lives to summon the contract spirit, and the more powerful the contract spirit summoned, the more lifespan he needs to sacrifice. However, in the face of this sky-collapsing start, Lu Ming seemed extremely calm, because while awakening his profession, he also awakened the god-level talent "Infinite Lifespan". So skills cost life? He is completely unfazed.