(Yicai Global) Jan. 4 -- Online platform Hai Feng Education secured tens of millions of dollars in series-C funding to invest in technology and research and upgrade its artificial intelligence plus human-based teaching system.

Tomorrow Advancing Life and Source Code Capital backed this round of financing, online media outlet 36Kr reported. "Haifeng Education will not expand business blindly. We will focus on product and service improvement for better user experience," said Zheng Wencheng, founder and CEO of the company.

Hai Feng Education has shifted its focus to online education since early 2014, developing a "1-to-1" online teaching model with low operating costs, shows company information. It had more than 4 million registered users as of the end of 2017, representing a monthly increase of 50 percent in new users.

Online education witnesses rising demand despite it is still at initial stages. Therefore, it offers ample room for growth. The investors are optimistic about the educational quality and teaching techniques of Hai Feng Education, said Huang Yungang, a partner of Source Code Capital.

Tomorrow Advancing Life values the investment of Hai Feng Education in technology and teaching research. It will work with Hai Feng to explore AI-based teaching, said a company official.