Holy shit I'm so retarded I can't even remember few kana characters 
I think I'm starting to remember them by their key presses, not sounds 
hmmm, there does actually seem a system to this
no there isn't a system, it's a clusterfuck
I've got hiragana down and now Katakana
This is difficult. I hope I don't forget hiragana now.
It's worse than hiragana
シ ツ
ソ ン
ウ ワ フ
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I think I got kana down. Now just continuous training so I don't read at the speed of a retarded 1st grader.
And now the fun part begins, grammar, kanji and vocab 
I got addicted to InfraSpace instead gg.
At least it's a fairly short game, first playthrough took me only 24h.