Lota City is a mental world hidden deep in the bottom layer of human consciousness.
Every human emotion will be condensed into the entity of "heart light" here. Once the emotion disappears, the heart light will die, and humans will be reduced to empty "cocoons". They will be recycled into emotional fragments and entered into the center of Lota to nourish human emotions.
Lin Yang's heart light [Yuki] is a mutant. She just wants to know why she has to rely on others to live and has developed self-consciousness.
Xie Ran comes from a higher dimension and is an observer stripped of emotions, only here for calculation and recording.
All observations went smoothly until he came to Lin Yang's school.
Intent: In a world of absolute rationality, in order to prove that the existence of emotion is the foundation of human civilization, where should Lin Yang go?
