Ma Jianguo attends class with students at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)

Ma Jianguo is the principal of Beiji central school in Beiji Village, also known as the arctic village.

In 1997, Ma came to Mohe and became a village teacher after graduating from university.

When he first came here, the school was lack of teachers. Thus, Ma has taught different subjects since then. Over the years, a lot of teachers have left the school, but Ma stayed because he believed underprivileged students need good teachers more.

Since 2013, Ma has served as the principal of the school. The number of students has increased from the least 120 to more than 160.

Students take biology class at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 7, 2021. (Xinhua/Xie Jianfei)

Photo taken with a mobile phone on Sept. 6, 2021 shows Ma Jianguo playing basketball with students at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province. (Xinhua/Yang Siqi)

Ma Jianguo plays basketball with students at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)

Students attend class at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)

Ma Jianguo participates in a firefighting drill with students at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)

Ma Jianguo gives a lecture at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)

Aerial photo taken on Sept. 6, 2021 shows a view of Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province. (Xinhua/Xie Jianfei)

Ma Jianguo inspects the campus at Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 7, 2021. (Xinhua/Xie Jianfei)

Ma Jianguo inspects Beiji central school in Beiji Village of Mohe City, northeast China's Heilongjiang Province, Sept. 6, 2021. (Xinhua/Xie Jianfei)