Vinegar to Cultivate Immortality

[Easy to remember name + no system + neurotic female protagonist + rat man male protagonist + cultivating immortals + mythology + relaxed and funny + dark style + novelty seeking] After I slept, the KTV became a secret place for cultivation, the shopping mall became the supreme treasure house, and the radio gymnastics and eye exercises became the supreme martial arts secrets. It's been 300,000 years, and these guys are still practicing feudal superstition and admiring antiquity, without any ideological progress at all.