Political whirlwind in the ROK shows its ties with Japan are shaky

The Republic of Korea is set to have a presidential election, likely in early May, thanks to the country's Constitutional Court stripping Park Geun-hye of her presidential powers on Friday.

Many parts of the world - the ROK's neighbors and allies in particular - are watching closely what will happen next. Among them, Japan has the reason to worry about relations with its neighbor.

The main presidential candidates in the ROK have committed themselves to repeal, or at least renegotiate, the agreement on the issue of Japan's wartime sexual slavery of Korean women, known euphemistically as "comfort women", which was inked between the ROK and Japan on Dec 28, 2015.