Professor Yamanobe is a teacher at Hanadera. His passion is dinosaurs, and he loves going to the zoo to watch elephants (as he imagines dinosaurs would walk like elephants do). He is a widower with one daughter. His wife died about a year before the events of Itoshiki Toshitsuki. Eriko Torii proposes to him, which he declines. However she refuses to give up and promises him that she will make him fall in love with her.  Source: Wikipedia

The second season of Maria-sama ga Miteru. 
 
The spring term is beginning for the students at Lillian Girls' Academy. Friends are reunited, but for the Yamayuri Council, it's a bittersweet time. Yoko, Eriko, and Sei are busy preparing to depart Lillian while Sachiko, Rei, and Shimako are doing their best to ensure that their dear sisters receive a memorable commencement. 
Sei's departure will leave a sizable hole in the White Roses, and filling it won't be easy. But is there anyone who could appeal to Shimako enough to become the next Rosa Gigantea en bouton? 
(Source: RightStuf)

The third season of Maria-sama ga Miteru. 
 
Summer has arrived at last, and with it comes the promise of summer break for the students of Lillian Girls’ Academy. Sachiko and Yumi retreat to the summer home of the Ogasawara family for a season of rest and relaxation, but their rosy trip soon sours when some old friends of Sachiko’s unexpectedly drop in. These wealthy snobs turn up their noses at Yumi and Sachiko’s relationship — and if Yumi isn’t careful, her blissful summer at Sachiko’s side could come to an abrupt and tearful end. 
 
(Source: Maiden Japan)