In a post-apocalyptic Japan where nothing but desert spans the horizon, prophecy tells of an unborn child named Tatara who will restore abundance and wealth to the land. Tatara is born in the small village of Byakko, alongside a twin sister Sasara; but after the Red King sends an army and kills the boy, it's up to Sasara to secretly take his role and live as Tatara. Now, she must defeat the Emperor and his four sons to give the land back to the people, but she also finds herself falling in love with Shuri, a mysterious man from a hot spring she visits. Can Sasara bring hope back to her people?
Both manga have lots of fighting action in them, they both take place in different time periods (where Saver goes to the past, Basara is so far in the future it seems like its taking place the past...if you read the manga, you'll understand), both have a little bit of romance, and both have great character development.
For no apparent reason, fifteen-year-old Yuri Suzuki is suddenly snatched out of her modern world by a pair of hands emerging out of the water. She is transported back to Hattusa, the Hittite Empire's capitol, during the time of the Bronze Age; its queen, Nakia, wishes to use Yuri has a human sacrifice. The only way Yuri can survive is by becoming the concubine to the Prince of the Empire, and Ishtar to the people of the Empire. With danger at every turn and her heart torn, will Yuri decide to stay in Hattusa, or try to find her way back home?
If you like the concept of Red River, then I recommend Saver (and vice versa). Both main characters are taken into a magical world and not by choice. These girls have to go through struggles in order to get home to their own time/world and in the process they make friends and even fall in love.