This OVA started out pretty chill, like a normal slice of life type. You know, the normal, 'just going through life' feel. Even so, it was pretty interesting, and the characters are very likable. Things started to change towards the end of the OVA though... The animation changed to a 3D-esk animation, like you see in video games. It was such a subtle change, it through me for a loop - I had to do a double take and started questioning if the entire OVA had been like that, which no, it had not. Holy crap that cliffhanger at the end though! This is meantto be episode 0 of the actual series, and they did a good job of catching your attention and then leaving you hanging, dying to know what happens next. The creators must be fishermen, because they know how to hook the watcher! I definitely have to watch the series now.