2boys, ahoge, belt, black_hair, blonde_hair, chosuica, cloak, eyebrows_hidden_by_hair, gloves, green_eyes, hair_between_eyes, holding, holding_hands, hyakuya_mikaela, hyakuya_yuuichirou, looking_at_another, male_focus, military, military_uniform, multiple_boys, open_mouth, owari_no_seraph, red_eyes, short_hair, smile, uniform, vampire, white_gloves