Koichi Hirose (Echoes) / Koichi Hirose (Reverb).Tamami Kobayashi tries to blackmail Koichi into paying for the cat he seemingly ran over with his bike. Kobayashi brings out his Stand The Lock to literally weigh Koichi down with guilt. Okuyasu and Josuke soon arrive to help him, but Kobayashi tricks Okuyasu into feeling guilty for punching him and Okuyasu falls under the thrall of The Lock. Josuke discovers that the cat was fake and heals Kobayashi's injuries, freeing both Koichi and Okuyasu from their locks, though Kobayashi gets away with Koichi's money. Upon arriving home, Koichi is shocked to find Kobayashi, who tricks Koichi's mother into thinking Koichi had stolen from him and puts both her and Koichi's sister under The Lock's power. Koichi's anger causes his Stand egg to hatch into Echoes,[h] whose ability is to plant literal sound effects on whatever it touches, driving Kobayashi crazy with repeated sounds. Kobayashi tries to take his revenge by tricking Koichi's mother and sister into thinking Koichi had stabbed him, aiming to drive Koichi's mother to kill herself. Koichi uses Echoes' ability to convince his mother to believe in him, freeing both her and his sister from The Lock. Kobayashi resigns himself to be Koichi's servant.