Japanese crossword «Turret»

Picture is nice, but cannot see how it relates to the title

turret
/ˈtʌrɪt/

noun
noun: turret; plural noun: turrets

a small tower on top of a larger tower or at the corner of a building or wall, typically of a castle.
"a castle with fairy-tale turrets"
a low armoured tower, typically one that revolves, for a gun and gunners in a ship, aircraft, fort, or tank.
a rotating holder for tools, especially on a lathe.

Origin
Middle English: from Old French tourete, diminutive of tour ‘tower’.