I want to learn Mandarin and stay in Qing Dao for up to 1 year.

Oh, I know one named 'Huaxing Chinese Language School'. They have responsible and warm-hearted teachers. And the learning atmosphere is relaxing and comfortable. You can go and see. The address is 13th Floor, Mong Kok Mansion, No.73, Middle Hong Kong Road, Shinan District.

This is great. Thank you Zach. Wil give them a call and organize.
Did you attend this school, too ?

No, I didn't attend this language school. But one of my friend did. He said this school is great. And the teachers are quite responsible. :-)