Lagrange: The Flower of Rin-ne Season 2 (Sub)
Watch Lagrange: The Flower of Rin-ne Season 2 full episodes online enghlish sub
Other titler: Rinne no Lagrange Season 2
Synopsis: Several months have passed since Lan and Muginami left Earth. Now in her final year of high school, Madoka spends most of her days thinking about her friends, when Lan suddenly returns to Kamogawa City.
More info: Myanimelist, wikipedia