My short story.Can anyone find some mistakes for me? Thanks

Yakuza is a very sloppy man. He does not like to clean up his room, so his room is very mess, his clothes are on the floor, the books are scattered all the way in his room,and the food on his desk is already mold.

 One day when he falls sweetly asleep, he is awake by a noise, when he opens his eyes, he saw a rat is eating his favorite chocolate, then he jump out his bed and try to grab the chocolate from the rat, but it doesn’t work , after that the rat waved to him, Suddenly appeared in front of a light, Yakuza fall into a Black hole. 

“Wake up” the rat said, now you are in Cinderella’s home, it is ten o’clock now, Cinderella went to the prince’s party, she will come back at twelve ,you must help her to clean up, if the house is still so dirty at twelve, you will never go back to 2016,the time will be back again,later the rat disappear.

Yakuza thinks it is just a dream, so he pinch himself, “ouch, it hurts ”he said ,it is not a dream, what can I do now, so Yakuza looks around the house, the floor has dust, and the cobweb is one more bigger than one, and if the dirty dish Stack height it will be more taller than him.  

So he starts cleaning, first he soap the plates, and wash it, when he finish washing the plates he feel tired, and it still has one hour left,so he sit on a chair and take a rest, then he saw a box of chocolate on the table, he starts to eat it, but when he did not recognize that the chocolate is a magic chocolate, it will let the time go faster and faster, suddenly the bell began pealing . Yakuza feels giddy, than he faint.

“Wake up” the rat said, you ate the magic chocolate, and you fail the mission, now you need to start all over, later the rat disappear.

This time he starts to mop the floor first, he prepare a bucket and filled with water, he let the mop soaking and wring it, and mop the floor, shortly after the floor glitters, this time although he feels exhausted but he did not take a rest, he went to the kitchen and keep cleaning the dishes, before the bell ring he finish all his work, he is fatigued but also sense of accomplishment.

He hears something waking him up again, but this time is not the rat, is his mother, because he is going to late for school. 

In the evening , when he come home from school, he starts to clean up his room, he puts his books tidy, throw the food he does not finish away, and fold his clothes neat, no one knows the reason, expect the rat.