Japan's benchmark Nikkei 225 opened trading with a gain of 0.3% on Monday, reaching 63,672.13 points, as energy and automobile sector stocks led the broader market rally.

In contrast, South Korea's KOSPI Composite Index started the session in negative territory, declining by 0.2% to open at 6,611.24 points, reflecting a more cautious sentiment among Korean investors during the early trading hours.