Rule 34 Dev - 10s 1boy 1girl ahoge black_hair blonde_hair blue_eyes boots crossover dark_skin genya_(genya67) glasses hands_on_own_head highres hirasaka_ryuji jewelry kneeling lab_coat medal military military_uniform necklace necktie open_mouth screaming smile tanya_degurechaff tobita_nobuo voice_actor_connection yakin_byoutou youjo_senki|7864351560