Everyone can sense the compatibility between others and themselves, regardless of race. The higher the compatibility, the stronger the feeling. This is an innate ability, and people are accustomed to using this ability as one of the conditions for making friends, but Elliot uses drugs to suppress it. But the rule of the world is: if the degree of compatibility reaches the highest value, the ability will activate automatically and guide you to your destined lover.
Purpose: To reflect the support of emotions for individuals through characters and events