First Love (SAKAMOTO Isao)First Love - Anata ga Watashi o Sabishiku Saseru ; First Love - Anata ga Watashi wo Sabishiku Saseru ; First Love ~ 寂寞真情 ; First Love ~Lonely Feelings~ ; FirstLove～あなたが私を寂しくさせる～

From Shoujo Crusade: Azayoshi lives in an empty world, there is no hope or happiness, all she wants is a person who will never leave her side. Suddenly Ai steps into her dark world. To her he was her love. But what will happen when he discovers Azayoshi's past? Why is she keeping secrets from Ai?