Want to hear sarcastic comments without being a ninja also want to hear about someone who honestly just doesn't give a crap about your mental state at the time being well? With a far too chipper personality, that, makes you want to grind your teeth? then you've obviously come to the correct story! Ryu is definitely someone who just doesn't listen well to the words, and doesn't leave something alone, but will definitely make sure everyone listens to leave her alone in the morning.