I read this before reading the original manga, but I'm going to read that next. I found this dj a little confusing at times, as I couldn't figure out who was speaking. I didn't realise they were already a couple, so when the h scenes came, I thought 'Whoah! That's a bit sudden isn't it? No confession or anything first?!' Lol. Anyhow, I really liked the art.
Kono Yoru no Subete - Donten no Hekireki (Doujinshi)