I'm Going to Die of Old Age, What the Hell Is a Baby System?

After traveling through the world of immortality, Han Xiao, who had just celebrated his 180th birthday, started the 'Entering the Tao from a Baby' system. What? Learn to call 'Dad' within seven days, and you will be rewarded with [Tian Yin Charm Technique]; learn to walk within seven days, and you will be rewarded with [Innate Spiritual Energy]; walk 10,000 steps within seven days, and your life span will be +10 years... Within seven days, if you drink the milk of your neighbor 'Aunt Xiaohui', you will be rewarded with [Menstrual Cleansing and Tongmai Pill]... Within seven days, defeat Wang Erniu and steal the [Qiankun Pearl] from his hand, and you can get [Qiankun Pearl] + [Xumi Technique]... Huh? Etc! Wang Erniu has already formed an elixir. How can I, a small foundation-building monk, defeat him? Go and get beaten, right? Within seven days, successfully build the foundation, and the reward will be... Han Xiao, who has entered his twilight years, seems to have regained his second spring, embarking on the path of cultivating immortality again and beginning to realize immortality!