In the near future, technology is highly developed. The society is bright on the surface, but people's emotional connections are becoming increasingly thin. The "Seven Emotions and Six Desires" are proven to be a substantial energy called "Emotional Source", which can be extracted, stored, traded and even weaponized. Unpurified raw emotional energy is huge and unstable, and will contaminate those who come into contact, and even give birth to monsters - "emotional beasts" - that feed on pure emotions and harm society. There is an illegal "emotional black market" where dangerous and extreme raw emotions are traded. Behind the glamor of the "Tianqiong Group", there seems to be ulterior experiments in primitive emotions going on.
