Xuan Yuan Sword Luminary
軒轅剣 蒼き曜 (original)
Ken En Ken: Aoki Kagayaki is based on the 2004 Taiwanese role-playing game Xuan Yuan Jian Waizhuan: Cang zhi Tao, whose story is set in the Spring and Autumn period of Chinese history (approximately 770–476 BC).
Starring Yoshitsugu Matsuoka, Nana Mizuki, Rie Kugimiya
Watch "Xuan Yuan Sword Luminary" on Crunchy Roll released in 2018. It's a fantasy and animation show, and has a rating of 6.4 out of 10 from Imdb which is usually fine for this kind of show.