If you're looking for manga similar to Dainihon Samurai Girl, you might like these titles.
Hoshino Sumito is a normal, 15-years old high-school student. One day he sees a different person coming out of his crushes' body.
Kasuga Rito had a hidden wish for a very long time: to use his ability for good and to help people. But before he could do that, he needed to gain the power of magic first. Rito is a sophomore in Rezon Institute, a school for people with special magic abilities to find, train, and develop their skills. Each student has to reach 100 points to be able to start using their ability. Otherwise they won't move up from the "Common" and into the "Starlight" class. But Rito, known as "the Eternal 99", has been stuck with an unchanging 99 points for a long time.
Welcome to the Barony of Babalon, where barbarians battle and blasphemous believers babble. After the death of the Babalons, the Baron and Baroness of the Barony, young Rize Babalon inherits both the title of Baron of Babalon and the barren Barony of Babalon. But as soon as he rises to the rank and files paperwork to take over, the rank-and-file citizens of the barony rise up and try to take over instead. But to save himself, Baron Rize does what he does best! He sucks up to the citizens! magic is the divine might that makes divine right for the nobility and aristocracy to rule. But our young baron decides to use that power for the citizens and bribe his way into a comfortable life. Or so he thought! His approval ratings suddenly skyrocket, and before he knows it, his people hail him as a savior! His magic may be revolutionary, but he didn't want a revolution! He just wanted to relax on the seaside, not commit regicide! He started empty-headed and empty-handed, but now things are getting out of hand!
Follows the main character, a middle school girl, who encounters an anti-Korean demonstration and “discovers” the “truth” that the mainstream media hide about the oppression of Japanese people by the Korean minority.