Hitsuji Yai! is an action game where you play as a shepherd who has to gather all the sheep in the pen and then close it before the sun goes down and move on to next stage. At some point the daughter (which is the name of the girl in the game) will appear and if you meet up with her you get bonus points. A wolf will move around in an infinity symbol pattern and will open the gate to let the sheep out, so you have to prevent that from happening. Once the sun is down it's the end.