Len and Kaito from Vocaloid

Two individuals dressed in elaborate costumes, posing in front of a white building with gold curtains and a large window. The woman on the left has blonde hair styled in an updo and wears a red dress adorned with intricate embroidery. Her counterpart on the right sports blue hair and a black top paired with a blue skirt featuring floral patterns. Both individuals are holding props, adding to the theatrical ambiance of the scene.