Draw Half Puzzle One Part

Do you know how to draw things? Do you know how to draw one part - DOP? Do you know how to draw at puzzle games?

There are hundreds of unfinished situations as the draw puzzle and you have to draw it to lead the story to a happy ending!

Well, at first it doesn't look hard: you get half a picture upfront. You need to figure out what it is and then draw lines in the second half. But here's the catch: you can only use one line to finish it! Think you can handle it?