1girl absurdres bangs bow bowtie breast_rest breasts breasts_on_table brown_hair bursting_breasts button_gap cellphone chair chalkboard classroom cleavage closed_mouth collarbone collared_shirt desk highres huge_breasts indoors iphone original phone purple_eyes red_bow red_bowtie school_desk school_uniform shirt signature sitting sleeves_rolled_up smartphone solo sukuemon tawawa_challenge upper_body white_shirt window