I Traveled Through Time, but the Tiger Demon, the System Also Asked Me to Have More Sons.

Lin Ye was reborn as a tiger king in the extremely dangerous world of immortals. If he was not careful, he might be killed by a passing immortal cultivator. Fortunately, he had awakened the system. Just give birth to a cub and build the foundation directly. Once cultivated, the body becomes holy. Not only that, if two are born, it will be doubled directly, and if three are born, it will be super doubled. But things are getting more and more wrong! How can the little kid now directly comprehend magical powers?