Corrector Yui

Season 1, Episode 6

Episode Title: Listen to Nature's Song (2)

Air Date: 1999-05-14

Overview:

Yui and the other try to convince Eco that not all humans are bad. But at the same time Yui must also battle War Wolf. Who plans to burn the place to the ground! It turns out that Eco was the one who abducted all the people who littered in the nature park.