Rainbow Echo

In this world, everyone's emotional and mental state will be subtly presented in the form of a "heart color". This is not a superpower that everyone can see, but an "atmosphere" or "aura" that only extremely sensitive empaths can perceive. ●"Heart color" is not fixed, it changes according to people's emotional fluctuations, like a flowing aurora. ●The "heart color" of a healthy and positive mind is bright, warm and harmonious. ●When a person feels confused, sad or depressed, the "heart color" will become dim, turbid or have discordant and conflicting colors. Our protagonist, Hoshino Hikari, is such a natural perceiver of "heart color". However, this ability is both a gift and a burden for her. She can easily discern the true emotions of others, but because of this she is often overwhelmed by the complex emotions around her, leading her to habitually keep a distance from others in order to protect herself.