Tired of Life, The Strongest Magician Gave up and Fell Asleep

Fiona, the strongest magician in the empire, is physically and mentally exhausted from being overworked on the battlefield.
It would be even easier–she thought, if she give up on her life on the battlefield, but when she woke up, she found herself being protected by Matthias, the enemy's strongest knight!?

The strongest doting fantasy in which she regains her own life while receiving her first love and kindness!