one shaku and one sun

in ancient China, the paperboard on which the imperial decree was written, or the imperial decree

timber - trees in a forest regarded as a source of wood. / material wood, (UK) timber, (US) lumber - wood that has been pre-cut and is ready for use in construction.

a bamboo measure

the shaku, "metal shaku", or Japanese foot: a traditional Japanese unit of length equal to 10 sun (寸) or ¹⁄₁₀ jō (丈), standardized as ¹⁰⁄₃₃ of a meter

shaku (measurement) / measure

one day

one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

each person

an elbow bone; an ulna