The Wisdom of the Reincarnated Maid: I Was a Pretty Average Office Worker, but with the Knowledge from My Past Life, I Gracefully Serve My Mistress!

Story :  Ellie is a girl who unconsciously retained some memories from her past life as an office worker in a cosmetics company. She is suddenly appointed to be the maid to the crown princess of the kingdom, Lady Arianne. However, upon their first meeting, Ellie is completely shocked with Arianne's appearance! Hives on her skin, a veil covering her pale face, this princess has kept herself locked up in the manor! It seems this all started when her father remarried, and trouble began to brew between her new mother and sister. Ellie decides to help by taking advantage of her memories of cosmetics, working to improve the mood and livelihood of the crown princess... but what will come from these efforts?!