One, Two, Three, Four, Five, Six, Seven: Someone Gets a Day Off Every Day

Yang Haotian! Also known as "Two Days a Day," a man whose "rich, handsome, and tall" description only fits the first and last words! Kindhearted and well-liked!

One dark and stormy night, he was inexplicably beaten up while walking home alone.

Then he awakened a System!

This System was anything but proper! It actually lured its Host into pursuing immortality.

[This blurb may be weak, but I invite you to read and find out for yourself.]