1girl ahoge black-framed_eyewear blush book book_stack breasts brown_eyes brown_hair glasses green_sweater hair_between_eyes halftone halftone_background highres holding holding_book huge_breasts long_hair looking_at_viewer mole mole_under_eye open_book pants parted_lips round_eyewear sitting sleeveless sleeveless_sweater solo sweater very_long_hair white_pants yana_(nekoarashi)