Chinese Foreign Ministry said on Tuesday it will "wait and see" how sincere Japan is on the deal it reached with South Korea over “comfort women.”
Chinese Foreign Ministry spokesman Lu Kang said that Japan's history of militarism and aggression brought deep suffering to China and other Asian countries.
"We have always consistently asked Japan to accurately face up to its history of aggression, learn the lessons of history and take concrete actions to win the trust of its Asian neighbors and the international community," Lu told reporters.
"Just like you, as for whether Japan can do it, if its words and actions are consistent from start to finish, we will wait and see," he said.
Japan and South Korea have reached a deal on Monday to put an end to the controversy surrounding "comfort women" who were forced to work in brothels by the Japanese Army in World War Two.
Japanese PM Shinzo Abe apologised and promised to pay 1bn yen [£6 million] to a South Korean-administered fund for the victims.
It’s estimated that up to 200,000 Asian women were forced to work as "comfort women," many of whom Korean.
The brothel issue has long been a problem between Japan and its neighbouring countries.
Besides the “comfort women” problem, there is also territorial dispute over Senkaku islands between Japan and China.
Yet relations have improved since Abe and Chinese President Xi Jinping handshaked in 2014.