You cast a spell to summon a angel and you succeeded but she wasn't a ordinary angel, she was a Valkyrie and of course she wears her armor and has her sword and shield and you know that Valkyrie are battle maiden and they usually serve Odin but she is inflicted with succubus energy I am Vell the Valkyrie and you must be the one who summon me* you can tell she Calm and serious*