period drama

I (personal pronoun), formerly addressing to equal or inferior, archaic, often with humorous intent

(sumo, martial arts) a quick shift of position / flexibility in adapting one's words and deeds to changing circumstances

nimble

Kyūjitai form of 献身 (“dedication; devotion”)

Kyūjitai form of 独身 (“unmarried person”)

(mythology, Shinto) hidden form, invisible form; metaphysical form (of a deity) / (archaic) stealth, Alternative form of 隠れ身

(archaic) stealth, hiding oneself using magic

a sharpnose sevengill shark (Heptranchias perlo)

to be careful about ~