Land of Silver Rain Volume 4 features story and art by Mira Lee.

Sirius has woken up from the spell of forgetfulness that his nanny cast upon him. He vows to save Misty Rain and comes down to earth to search for her. Away from the prying eyes of his nanny and the rest of the Unicorn Kingdom, he is finally free to stay with his beloved Misty Rain for as long as he desires. But happiness turns to sorrow when tragedy strikes.The young Prince Sirius falls victim to Medusa's evil trap and loses both his heart and soul. 

The king of the Unicorn Kingdom and the Great King of Darkness of the Land of the East Dokebi come forward and join forces to help Sirius' regain what has been taken from him. Meanwhile, Misty-Rain finally meets the mysterious human woman in the portrait she discovered in the palace of the Great King.