There are no longer any incurable diseases in the world; all ailments can now be healed.
Some children are born without eyes or noses, but legendary eighth-tier extraordinaries are able to help them grow eyes and noses.
Those born lacking hearts, kidneys, arms, legs, and the like can grow new ones through life spells; the related technology has been thoroughly researched.
Imagine this world, where everyone is neither worried about incurable diseases nor aging, and similarly not concerned about safety accidents.
Practically everyone has purchased a golden amulet, providing them with an assurance of immortality. The principle is to use space magic and life magic to protect one's brain. If an accident occurs that could directly harm the brain or cause death due to lack of blood or oxygen, the immortality assurance will trigger, entrapping the brain with space magic to prevent any external damage, while life magic maintains vitality.
