It's a chocolate-flavored maid! Hello, Mr. Chocolate.

In cover order from left to right:
Yujin: The coloring didn't go on evenly so she turned into a chocolate-colored maid! Her face and eyes are swollen! Happy 520 and 521, everyone!
Juju: Poor Juju is wearing the same maid outfit she's worn a million times, so I'll definitely change it next time!
Lightwheel: The last time I wore a maid's outfit was N years ago ~ watch and cherish!
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