1boy, 2girls, 4koma, @_@, bandana, bishop_(chess), black_necktie, black_shirt, blue_eyes, blue_hair, board_game, breasts, brooch, brown_gloves, brown_hair, captain_(master_of_eternity), chess, chess_piece, chessboard, cleavage, comic, competition, couch, crossed_arms, dna, emphasis_lines, flamethrower, glasses, gloves, goggles, goggles_on_head, green_hair, hair_ornament, hand_on_own_chin, hand_to_own_mouth, hat, high_ponytail, jacket, jeanie_(master_of_eternity), jewelry, knight_(chess), korean_text, lab_coat, labi_(master_of_eternity), lightning, master_of_eternity, mecha, medium_breasts, military, military_uniform, multiple_girls, necktie, nhadraw, on_couch, pawn_(chess), pink_jacket, playing_chess, playing_games, puffy_short_sleeves, puffy_sleeves, queen_(chess), red_bandana, red_eyes, robot, rook_(chess), safety_glasses, sailor_hat, shirt, short_sleeves, sparkle, straight_hair, swept_bangs, table, thinking, uniform, weapon, white_gloves, white_headwear, white_uniform, work_gloves