Echo / Zeon

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Starting in 1999, Echo / Zeon follows the high school lives of three friends. Yukari is an ambitious girl with a love for money. Takao is a large, somewhat timid individual, but also a karate expert. Kanze possesses a unique talent: she can perfectly replicate any sound she hears, from voices to musical instruments. Together, they navigate their high school days, taking on various cases and solving mysteries for other students, ensuring their lives are never boring.