Complex sentence: The game takes place in a fictional land called "Dokapon Kingdom" which is being attacked by several monsters, seeing this, the king offers his Penny, his daughter, to be married as a reward to the person who saves the kingdom.
Split into simpler sentences: The game takes place in a fictional land called "Dokapon Kingdom" which is being attacked by several monsters. Seeing this, the king offers his Penny, his daughter, to be married as a reward to the person who saves the kingdom.