On the Disney Japan live-action character page, find the 'Star Wars Characters' link. Navigate to that page, locate 'ダース・ベイダー (Darth Vader)', and identify his primary role or identity and his most notable power or characteristic.
Navigate to the 'ディズニー・ライブアクション(実写)キャラクター' page. Scroll down to find the 'おすすめキャラクターリンク' (Recommended Character Links) section. Click on the 'スター・ウォーズ　キャラクター' (Star Wars Characters) link. On the Star Wars character page, locate 'ダース・ベイダー (Darth Vader)'. Extract Darth Vader's primary role or identity. Extract Darth Vader's most notable power or characteristic.
Successfully navigates to the 'スター・ウォーズ　キャラクター' page. Identifies 'ダース・ベイダー (Darth Vader)' on the page. States Darth Vader's primary role/identity as '銀河帝国を恐怖で支配する、冷酷な指揮官' (A ruthless commander who controls the Galactic Empire with fear). States his most notable power/characteristic as 'フォースの暗黒面を操る' (Manipulates the dark side of the Force).