24. In the Deep Darkness 2012 La corda d’oro primo passo OST 金色のコルダ

The dark side of Yunoki-Senpai.
Japanese title Kese nai Yami no Naka de 消せない闇の中で
Edited from 14th and 15th episodes. Composed by Mitsutaka Tajiri
Azuma Yunoki playlist http://www.youtube.com/watch?v=k9tZrl3hiis&list=PLOYsUxAW0KI_NYkXTsOmt4KFEljU68vbv&index=7