Hentai: Rance 01: Hikari wo Motomete The Animation 

OVA 1: http://bc.vc/vVoQXBe

Ova 2: http://bc.vc/RWQBDJm

OVA 3: http://bc.vc/L1Gs4E6

Ova 4: http://bc.vc/OY34et6