Bewitched by the Demon Lord

The day Sera left her village to see the world and to escape her future obligations. She wished to go to the capital and stay put until she die on the capital. however, her dreams scattered once again as she met a certain man who mad her life complicated. Even thought she feel like to leave him alone, a part of her making her stay for a while with him. the feelings she can't understand as she walk beside him. When did it start? she can't even remember but all she want is to be with him until she took her last breath.