If you're looking for manga similar to Houkago Adventure Valiant, you might like these titles.
Bat has returned to her birthplace, Rainbowria, where her mother grew up. The 17-year-old Bat, as the princess of the Black Knight Queen, has roused the sealed Starship from its sleep. The story follows Bat's adventures in the mysterious Starship.
If you become a hero and defeat the Demon King, a life of idleness awaits you...! This is what the young man Jirei believed, and he worked hard day and night to achieve his goal. However, when he found out that the heroes who defeated the Demon King were the ones who were doing all the hard work, he ran away. But the girls that Jirei had been saving on his journeys before he knew it came pouring in one after another to win his heart and body...?
200 years after the events of the original Pappara Army, Prince Izuru's kingdom has been usurped by none other than his own little sister Ranje. Having been defeated and currently pursued by Ranje, Izuru unexpectedly makes contact with a rebel army: the Southern Independent Task Force, Pappara Army. Amongst the rebels are three beautiful girls, each with her own insane antics and brutal manner of dishing out damage. Izuru reluctantly joins forces with the Pappara Army, now to retake his throne.
If you say the right words, one of Honmaru's dad's old books can summon a magician. His name is Taruruto, and he can grant wishes - but doing good deeds makes him weaker! All that Honmaru wants is to stop being bullied and to get to hang out with his new friend Iyona. Can Taruruto do something about that?
It is an age of paranoia, superstition and religious fanaticism and the kingdom of Excludo is being engulfed in flames. The people are under the thrall of witch hysteria and burnings and executions have become a common sight. But the witch trials and inquisitions are a fraud and countless innocent women, falsely accused as witches, are being burned at the stake. Just when all hope seems lost, along comes the Black Knight-Mist, and his sidekick Euphemia, a "true witch" to avenge the innocent and force their own brand of justice on the wicked!
In the late-medieval land of Barnard, between the mountains and sea, the peaceful lifestyle of the people has been shattered by fear. Monsters known as the Dark Ones roam the land, killing indiscriminately. The townsfolk fear to venture out from their homes, and travel from town to town has become a risk to life and limb. To protect the people from this terror, several guilds have sprung up, including the Guild of Assassins and the Guild of Mercenaries. To go out into the world, or travel across the wilderness, hired mercenaries are essential. One man has built a reputation as an especially fierce monster-killer — a man known as Leroy Schwartzer. A former high-ranking member of the Guild of Mercenaries, Leroy has struck out on his own. Many try to hire him for his superior skills, but Leroy has his own agenda. He has a mission to accomplish, a vow to fulfill. This vow is known only to himself, and his one companion: his sentient long-sword Ragnarok.
Shinya doesn't get stellar grades, he's not athletic, he's a coward, he's a wimp...he's a general good-for-nothing. One day, he meets Haruna, a girl that could change his life forever. Haruna tells Shinya he is the Messiah. The Lord chosen to save her world and that she is his shield. Could it be true? Could Shinya's life of ineptitude be balance for this one grand cause? Is he really the Messiah? If he is, can he save himself, let alone an entire world?