Rule 34 Dev - 1boy air_bubble bad_id bad_pixiv_id bare_pectorals blue_background bubble cu_chulainn_(fate) cu_chulainn_(fate/stay_night) cu_chulainn_(second_ascension)_(fate) fate_(series) gae_bolg_(fate) gang grin holding holding_weapon igote long_hair looking_at_viewer male_focus merman monster_boy muscular official_alternate_costume pectorals red_eyes sharp_teeth smile smirk solo tail teeth underwater weapon|9657367785