Loveless (2005) : 1x6

Ritsuka refuses to join any club activities because it clashes with his therapist’s appointments. While he worries ever more about forgetting his past, she offers to take him out for a “date” to get to know him a bit better, where he accidentally reveals the extent of his mother’s abuse of him. Meanwhile, Ritsuka’s teacher attempts to make another home visit, but gets accosted by the latest pair of enemies, codenamed “Zero” They take her captive and Soubi intervenes and takes them on without Ritsuka present as his sacrifice.