The Lazy-Fish Master Became the Strongest in the Three Realms by Taking on Disciples

After transmigrating to the Immortal Realm, Jiang Han only wanted to live a quiet life as an idle Immortal Venerable. But then he awakened an apprentice-taking System. As long as he checked his disciples' attribute panels and carefully nurtured them, he could reap the rewards. When his eldest disciple reached the pinnacle of alchemy, his second disciple shattered every law with the sword, and his third disciple forged divine weapons, Jiang Han discovered that his own cultivation had automatically doubled and soared. When the Demon Venerable led a hundred thousand demon troops to his doorstep, nearly a hundred top-tier star disciples of the Immortal Realm stood behind him, and somehow, he had become the strongest being in the Three Realms.