Adorable House Escape

I got a job in city, for my convenient, I stayed in my friend's house.

He mistakenly locked the door without noticing me inside the house.

And I don’t know where the spare key is. I was detained in room. Today is my first day for work, it's getting late

Please help me to escape from this house.

Try to make use of the objects and items found inside the house.

And arrange them logically to solve the puzzle to escape from the house.