HistoricalWilliam GilbertBenjamin FranklinAlessandro VoltaMichael FaradaySamuel MorseGraham BellHeinrich HertzThe Hayase FamilyMari HayaseRika HayaseAkira HayaseEiji HayaseThe Mizuki FamilyWaka MizukiShun MizukiRei MizukiOther CharactersFuuta IchikawaJoe MikageSatsuki KurokiMediaAnimeEpisodesMusic