Ryuu had a small notepad in his hand and a writing device called 'The Fountain Pen', as he wrote down about various places which are of interests for tourist like him. He loved using this fountain which his teacher gave him on his 15th birthday by his 2nd mistress Nuwa. Since he had first learned to write he had learned it with the help of brush including when he creates any form of array he uses brush and ink from inkpot, but recently he was gifted a set of two almost identical 'pens' one for writing and another for creating the arrays.
His pen contains over 30 carats of diamonds on a solid platinum barrel. It has a two-tone, rhodium-treated, 18KT solid gold nib and is personalized with a picture of a dragon one with red one which was meant for writing and the black one for using while creating arrays.
