Mona Megistus wished to surpass her mentor and become known as the world's greatest astrologer. But she hadn't been so desperate as to summon a being that had never walked under the skies of Teyvat. But she had, and the man who proclaimed himself to be a 'Tarnished' immediately devoted himself to her service. One carried a name and past. The other without a name and of no renown. One sophisticated. The other barbaric. Both slowly realize they complete each other.All Rights Reserved