You've seen Choo Sarang's house in every episode of 'Superman is Back,' but did you know how much their house is worth?

The March 30 episode of 'MyeongDan Gonggae 2015' featured a segment on�Yano Shiho, Choo Sarang's Japanese mother, was ranked the 6th best super-mom. That's because she was a model, who often graced the cover of various magazines for 20 years.

The episode also featured Choo Sung Hoon, Yano Shiho and daughter Choo Sarang's nice apartment.

Their high rise in Tokyo, Japan is said to be so big that it's quite a burden to clean. The�luxury apartment is 51 pyong (approximately 1814 square feet), and the rent is 850,000 yen (approximately $7,071 U.S. dollars) a month! Best of all, Yano Shiho's company is said to pay the rent and living expenses.

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Despite Tokyo being known as one of the most expensive places to live in, it looks like Choo Sarang's family is living the high life, literally.