The trend of Idol groups going with a more Rock to full-blown Heavy Metal style continues with PASSCODE.
PASSCODE features a lineup of yu-ri ,Kaede ,Yuna and Nao that is top to bottom cuteness.
Musically PASSCODE mixes Rock, Heavy Metal and Idol elements together, while not to the level of BABYMETAL, PASSCODE style works for them.
Strong points for PASSCODE include a unit that is good singers and creative when acting in videos. In short they enjoy using comedy to get across stories.
If you like high-energy, rock/metal groups that balances metal and Idol together then PASSCODE should be on your list.
Source: Pure Idol Heart