To be honest, a lifespan increase of at least thirty years is already very powerful.
Because according to what Fang Yu had inquired, those life-extending potions that are available for sale are not only incredibly expensive, but their effectiveness is often not measured in years, mostly in months.
Some medicinal materials don't even directly indicate a lifespan extension but rather require a certain period of health maintenance through combination with other medicines to gradually increase longevity.
Everyone wants to live longer, and desires to prolong life, but given the limited amount of Heavenly Materials and Earthly Treasures, price hikes due to competition are normal. However, when the prices soar but the effects fall short, it truly becomes unbearable.
