Write to help your Kanji Party fight.
As you write the character on the screen, the corresponding Kanji battle power will increase.
Write the character perfectly and your Kanji will demonstrate their true power.

There are special attacks, known as "Jukugo", that can be used depending on how you match up the Kanji in your Party.
Some Jukugo will do major damage to your enemies, others will increase your power, help you recover and so on.
Try many combinations and discover all the different Jukugo.