ahoge artist_request blue_eyes boots breasts brown_hair character_name choker confetti dress dutch_angle earrings hat heart idol idolmaster idolmaster_million_live! idolmaster_million_live!_theater_days jewelry long_hair looking_at_viewer medium_breasts microphone music official_art one_eye_closed open_mouth palm_tree pool singing sleeveless sleeveless_dress smile solo stage strapless strapless_dress thigh_boots thighhighs tokoro_megumi tree water