Students who wish to stay at Stay for U Hongdae must apply online by yourself. The reservation is a first-come first-served basis, and please note that you may not be able to reserve a room even if you complete your application. Therefore, we suggest you apply as soon as possible. 

4 months stay: 570,000 KRW per month (economy)

4 months stay: 670,000 KRW per month (standard) 

Application link: http://stayforu.com/