Hanna (ハンナ, Han'na) is Saga and her friends' school teacher. She owns a pet turtle named Lancelot whom Pepper befriends and helps.
Saga's school teacher, a caring woman who is concerned about Saga's domestic situation.
Read more at http://myanimelist.net/character/18251/Hanna#TmEtOcpdGRrrJCMu.99