sidekick

US /ˈsaɪd.kɪk/
UK /ˈsaɪd.kɪk/
"sidekick" picture
1.

相棒, 助手, 子分

a person's assistant or close associate, especially one who is less important than that person

:
Batman and Robin are a famous hero and sidekick duo.
バットマンとロビンは有名なヒーローと相棒のデュオです。
Every great detective needs a loyal sidekick.
すべての偉大な探偵には忠実な相棒が必要です。