skm to omega_seiya sorry to intrude but i was just posting a message for Dragon55 i came across about your message that you posted in there message link
Sorry for interfering but i got the name of that game Its this
家族ヲ蝕ストイウコト
Romaji: Kazoku o Shokusu to Iu koto
Brand/Company: Eroge Honpo/エロゲーホンポ
Release date: 2009-10-23
AND here is its download link
Kazoku o Shokusu to Iu kotook icheck it, thanu :)