3girls animated black-framed_eyewear black_cardigan blue_shirt blurry blurry_background cardigan chibi drawstring green_hair holding holding_pen hood hood_down idolmaster idolmaster_shiny_colors indoors long_hair long_sleeves looking_at_viewer multiple_girls nanakusa_hazuki official_art open_cardigan open_clothes osaki_amana osaki_tenka paper_stack parted_lips pen puffy_long_sleeves puffy_sleeves shirt siblings sisters skirt standing television v-shaped_eyebrows video window writing
3girls black-framed_eyewear black_cardigan blue_shirt blurry blurry_background cardigan chibi drawstring green_hair holding holding_pen hood hood_down indoors long_hair long_sleeves looking_at_viewer multiple_girls open_cardigan open_clothes paper_stack parted_lips pen puffy_long_sleeves puffy_sleeves shirt siblings sisters skirt standing television v-shaped_eyebrows window writing
nanakusa_hazuki osaki_amana osaki_tenka
idolmaster idolmaster_shiny_colors
animated official_art video