1boy, 1girl, ?, ??, a.i._voice, ascot, blush, book, brown_hair, brown_skirt, explosion, explosion_gag, fun_bo, green_eyes, green_hair, green_sweater, hair_between_eyes, hand_on_own_chin, holding, holding_book, kurita_maron, long_hair, long_sleeves, looking_at_another, looking_at_viewer, mars_symbol, niconico, niconico_headquarters_(harajuku), open_book, open_mouth, otoko_no_ko, pea_pod, plaid_ascot, reading, short_hair, sitting, skirt, smile, stroking_own_chin, sweater, voicevox, yellow_eyes, yellow_headwear, zundamon