Japan's benchmark Nikkei 225 pared gains Tuesday, falling from record highs, after hardline conservative Sanae Takaichi won the lower house vote, to become Japan's first woman prime minister.
She received 237 votes, clinching the majority of the 465-seat chamber, according to public broadcaster NHK.
The Nikkei 225 index closed 0.27% higher at 49,316.06.
The Topix also pared gains to settle nearly flat at 3,249.5, after hitting a record high earlier in the day.
Meanwhile, South Korea's Kospi index ended the day 0.24% at 3,823.84 after hitting a sixth consecutive record high, building on a rally spurred by optimism around an impending trade deal with the U.S.
South Korean stocks have been on a roll since U.S. Treasury Secretary Scott Bessent told CNBC in an exclusive int