Rule 34 Dev - 4boys aged_up bag_on_lap black_bag black_footwear black_pants black_suit briefcase closed_eyes diagonal-striped_clothes diagonal-striped_necktie ensemble_stars! feet_out_of_frame formal_clothes grey_socks half-closed_eyes head_bowed head_on_another's_shoulder heads_together highres indoors leaning_on_person male_focus mashiro_tomoya megumino_daichi multiple_boys necktie night nito_nazuna on_chair pants poster_(object) shino_hajime shoulder-to-shoulder sitting sleeping sleeping_on_person sleeping_upright sliding_doors socks straight-on striped_clothes suit tenma_mitsuru third-party_source train_interior u_u uniform v_arms window|23053801563