to keep something ready at all times

(fandom slang) exposed skin of the thigh between the hem of a miniskirt and thigh-high socks

天正: / 天承:

(archaic, poetic) older name of the 鴛鴦(おしどり) (oshidori, “mandarin duck”) / a kind of 家紋(かもん) (kamon, “family crest”) featuring a mandarin duck