According to the news articles, early voting for House of Representatives this time increased by 30% compared to the previous one. (Over 27 million ballots by yesterday.)
Higher voter turnout itself is a good thing for democracy to function properly, but with the new Prime Minister proposing authoritarian policies including the Constitutional reform with the removal of some human rights clauses , it is necessary for people to carefully examine the claims of each party before polling.

This House of Representatives election was called suddenly because the Prime Minister and the ruling party wanted to avoid being investigated for corruption in the Diet.
The election period has also been shortened, which hinders election preparations, including overseas voters being unable to vote and Braille support for disabled voters being not available in time.

The ruling party won a landslide victory, making the most of the advantage of being the newly appointed, historically first female prime minister, despite a lot of critical scandals such as connection with a cult organization, corrupt politicians running for it, and the repeated gaffes that provoked neighboring countries that damaged the economy. The obviously authoritarian party won solely through publicity and image strategies, avoiding all public party leader debates on TV.
This society will likely become increasingly corrupt and oppressive (including xenophobic policies and against same-sex marriage). Nonetheless we must still put hope on the resilience of democracy.