! !! 1boy 1girl aqua_ribbon blonde_hair brother_and_sister cardigan coat crooked_eyewear dutch_angle english_text explosion framed gradient_hair green_shirt hair_ornament hairclip hexagram hitopm id_card iopen_mouth lab_coat lanyard lapels looking_at_object multicolored_hair neck_ribbon notched_lapels open_mouth orange_cardigan orange_hair pastel_colors pink_eyes planet pocket project_sekai ribbon round_eyewear shirt siblings sound_effects star_(sky) star_(symbol) tenma_saki tenma_tsukasa twintails ufo upper_body white_coat