Saikyou Koshaku Reijou no Henkyou Oshikakekon Fraulina Rosenheim wa Unmei no Tsuihou Madoushi ni Totsugitai

Fraulina, a highborn and beautiful young woman, never thought she’d live past childhood. Her incurable illness made her as good as dead… until she was miraculously saved by the genius mage, Reynold. It was that moment she fell in love with Reynold and pledged to marry him! Ten years later, at the age of 18, Fraulina is determined to marry Reynold. There’s just one small problem… Reynold has been banished from the kingdom and completely lost his will to live! Fraulina barges into the situation, determined to save Reynold, and soon enough, Reynold’s life has been turned completely upside down by Fraulina’s incredible abilities and infectious personality. This is how Fraulina and Reynold, banished and living at the edge of the world, begin their roller coaster of a married life!

Mage's Japanese commercial manga debut.