byway; bypath; byroad; loophole; excuse
imprudence; oversight; omission; mistake
cast-off skin (snake, insect, etc.); husk; empty shell; exuvia; exuviae
any large, red, deep-water scorpionfish with big eyes; Matsubara's red rockfish (Sebastes matsubarae)
secret passage; underground passage; loophole; hole one can go through; opening
stealing a march on; getting a head start; secretly acting before others; solo raid on an enemy's camp (for glory)
runaway ninja; fugitive ninja
refinement; style; sophistication
Pacific ocean perch (Sebastes alutus)
Sebastes iracundus (species of rockfish)
bluering angelfish (Pomacanthus annularis)