Identify Old 3D animation featuring a school girl and an old man

[Unknown Developer]

I don't really remember the name, I just remember it was posted by someone named Inuyasha. It's a 3D animation, bigger than an hour, it featured a highschool girl in uniform with twin ponitail chestnut hair having a long sex scene with a middle aged man inside a not well lit building (possibly made out of wood). It's an old animation possibly more than 8 years old. i tried to find it in many sites with 3D animations but was never lucky.

I know it's a long shot, but here it is. Does it ring a bell to anyone?

 

[Goeffel]

somehow made me think of Umemaro 3D - those are kinda hidden in the games section, not in "animations"

 

[Unknown Developer]

somehow made me think of Umemaro 3D - those are kinda hidden in the games section, not in "animations"

No, I don't think it was from a big studio. If it was from Umemaro, I'd have found it already.