Type in Japanese, within Minecraft! Normally, when you try to activate a Japanese keyboard while playing Minecraft, you are both unable to input the Japanese text and unable to play the game. This plugin hopes to alleviate any headaches caused by this.
Type /jp, then press "tab" on the phrase that follows to convert it to Japanese text:
Note that this is only compatible with 1.8 for the time being. Support of more versions may be added in the future, as well as support of the other CJK languages, configuration options, etc. This plugin is powered by Google Input Tools.