What if the strongest final boss in the original becomes a companion of the main character?
原作最強のラスボスが主人公の仲間になったら? / What If the Strongest Final Boss of The Original Story Became The Protagonist's Companion? / What If the Strongest Final Boss from the Original Story Became the Protagonist's Ally? / Gensaku Saikyou no Last Boss ga Shujinkou no Nakama ni Nattara? / What If the Strongest Final Boss from the Original Story Became the Protagonist's Ally? • 原作最強のラスボスが主人公の仲間になったら? • Gensaku Saikyou no Last Boss ga Shujinkou no Nakama ni Nattara?

Reincarnated as Ugram, the strongest final boss of a fantasy novel adapted into a game, a man tries to escape his destined death by seeking asylum in the kingdom of Princess Iris, the novel’s protagonist and the enemy nation’s princess. When he finally meets her, the comfortable life he imagined does not await him. Instead, Ugram becomes Iris’s swordsmanship instructor and bodyguard, goes on dates with her, and takes on a fatherly role toward a young assassin. His innate Magic Core powers his absolute-defense skill, Magic Barrier, letting him overwhelm those around him. His chaotic new life alongside the pure, lovely—and notably violent—Iris begins as he settles into his role as the strongest.