There are a few things that suck about this. Multiple watermarks and the written intro. There's practically no story here, there's no reason to explain.
From an ntr perspective it is what it is. And it's basically all it is. Without a single image of background, without getting to know the characters, the ntr has almost no impact at all.
All in all this could've been much better. Which is a shame since the skill of the artist isn't bad.