1girl absurdres bangs blue_archive blue_eyes blush collared_shirt frown furrowed_brow gou_213 halo hand_on_own_face hand_on_own_thigh highres jacket leg_belt legs long_hair long_sleeves looking_at_viewer lying off_shoulder on_side open_clothes open_jacket parted_bangs purple_hair shirt sidelocks simple_background skindentation skirt solo thighs two_side_up wavy_mouth white_background white_shirt yuuka_(blue_archive)