Rule 34 Dev - 2017 6+boys ahoge blonde_hair blue_hair fukase green_hair grey_background hair_over_one_eye heterochromia kagamine_len male_focus mizuhoshi_taichi multiple_boys oliver_(vocaloid) red_hair ryuuto_(vocaloid) shirt t-shirt utatane_piko vocaloid vocanese vsinger_(vocaloid) white_hair zhiyu_moke|9058582728