Although Sendai is a large city of about 1 million population, housing expenses are much lower than those in the Tokyo metropolitan area.
Apartments and condominiums of 6?8 mats (10?13 m2) in Sendai city rent at about 35,000?60,000 yen according to the location and conditions.
See the Tohoku University co-op website
for recommended housing information
A questionnaire administered to Mathematical Institute students informs us that living expenses per month are around 100,000 yen on average,
and about 90,000 yen for some living in apartments.
Of course, you can reduce expenses further if you live in university housing