Ninpuu Sentai Hurricaneger (2002)

S1E35 Scroll 35: The Sparkle and The Shamisen

After butting heads with Shurikenger over his brutal training regimen for mastering the Ninjamisen, the Hurricaneger and Gouraiger rebel against his methods. Frustrated by their resistance, Shurikenger realizes force won't work and shifts gears, adopting a gentler, more understanding strategy to teach them the instrument's true significance.