Be a Good Boy and Marry Me - Chapter 554 - 383: The Relationship is Getting Better_1

July, 1946. The existence of an alternate world was confirmed.

It was supposed to be a new world for mankind.

However, the enormous cost, the annihilation of the advance troops, and fierce public opposition led to the signing of a non-aggression treaty.

Mankind turned their eyes towards space.

Half a century later.

A certain company formed a team in order to explore the alternate world’s dungeon.

Five professionals and three artificial intelligences. And one reserve member.

With modern weapons and technology, the adventure was expected to be easy.

However, the ones who had arrived in the alternate world were a defective artificial intelligence and a non-professional.

Through trial and error, they lived, ate, and fought. And, they explored the dungeon.

[Progression-Fantasy | Overpowered | Kingdom Building | Monster Girls | Literary RPG Mechanics][ACHIEVEMENT UNPRECEDENTED][You have successfully embraced the Origin: Celestial Archive][You have earned the talent: Summon (Rank E)][You have been gifted the ability to summon a single SSS-Rank creature][You have unlocked a new talent: Talent Copy][You have summoned Amara - Night Queen (SSS-Rank)][You have awakened the talent: Blood Monarch (Rank SSS)]In the Kingdom of Eirland, Hunters battle vicious monsters that emerge from mirror dimensions known as Events.Markus White awakens a Common Tier Origin, 'Scout', at the age of 15, dreaming of making it big as a Hunter. But Hunters like him are a dime a dozen, their efforts insignificant in the grand scheme.One day, while clearing an Event Rapture with his team, an unexpected incident leads him to encounter a dragon.Now armed with the Supreme Tier Origin 'Celestial Archive', which allows him to summon powerful Monster Girls, how will Markus use his newfound abilities? And what impact will his existence have on the world?

SLASH!(So this is death?!!)I, Elysia, found myself dead before even reaching the Demon King's lair, and our Hero Party was completely annihilated.And this was done by none other than a fellow human—my former classmate.He had been mostly invisible during our time at the academy, but then he started committing one crime after another until he became a lackey of the Demon King.Who would have thought that the strongest party of humanity would be wiped out by humanity’s traitors?(If I could go back to the past, I swear I will kill you!)Just when I thought I could finally pass on, I opened my eyes.Five years back, when I first enrolled at Arcadia Academy.And there he was, the traitorous bastard of humanity...****“Huh? Where am I?”One day, I opened my eyes to find myself in an unfamiliar place and came to realize this was the world within the novel Savior's Dawn that I had read.Everything seemed to be proceeding the same as in the novel—except for one thing.The main heroine is glaring at me as though she wants to kill me.Could I survive with the main heroine after my life?

[The Demon King is Dead], a story in which the Demon King got immediately killed in the Prologue. I became the ‘Demon Prince’ of said novel.

…Help me.