idolmaster, the idolm@ster: shiny colors, shirase sakuya, gao (gaolukchup), simple background, gradient background, watermark, web address, patreon username, 1girl, 2boys, assisted exposure, black hair, black legwear, blush, breast grab, breasts, brown hair, closed mouth, collared shirt, eyebrows visible through hair, female, grabbing, gradient, green neckwear, green skirt, groping, guided breast grab, hair between eyes, large breasts, long hair, looking to the side, male, multiple boys, navel, necktie, nipple grab, nipples, nipple tweak, no bra, nopan, open clothes, open shirt, pleated skirt, ponytail, pubic hair, school uniform, shirt, skirt, skirt lift, solo focus, standing, tied hair, unbuttoned, undressing, very long hair, white shirt, yellow eyes