Genji Monogatari Sennenki, Chouyaku Hyakuninisshu: Uta Koi. Recommendations
Both are in the same Era and are about love.
They have both the same setting and follow skilled, good-looking nobleman and their lovers at the court. Both are full of passion and drama.
They also have a simular background: While 'Genji Monogatari Sennenki' is based on one of the first novels writen by the court lady Murasaki Shikibu, in 'Chouyaku Hyakuninisshu' Murasaki Shikibu and her rival Sei Shōnagon, that also wrote one of the first novels (Makura no Sōshi/The Pillow Book), are characters of the anime.
But there are also diffences, The art and style are different and 'Chouyaku Hyakuninisshu' has also comedy and fllows different nobleman/poets, while 'Genji Monogatari Sennenki' only tells Genji's dramatic story.