The night of the new moon is upon us. Seigi has given into his joy and lost himself. The prize long since lost has been found, or so he thinks. Fate is playing its final hand. Will our hero become who he wants to be, or will he become the monster he was always meant to be? Madness and chaos abound as we start down the road to the end. The final arc of Isekai Monster is now beginning.

Now begins the Messenger’s game. Everything played out exactly as he planned. There is not a mortal or god within the dream that can understand and defeat the Lord of Play. Before Seigi, only the messenger held desires. And now those desires are running rampant within this prison. What are his goals, besides having fun? What exactly does the Lord of Play want from this game?

A collection of side stories that happen after book twelve of Isekai Monster's main story. Hidden within are hints and clues to many mysteries from the main story.

Their contract has been forged. Secrets have been revealed and accepted. An entirely new path has opened up for the Twilight Kingdom. However, now comes the hard part. Looking to their future together and what that will bring for everyone around them. What will these new connections bring for the hero that is a monster and the kingdom he protects. What will be born of their union? Will this bring tragedy, or will it bring salvation? Or more likely both.

They have been stolen. Seigi’s children were taken by the same type of hero summoning spell that called him to this world. Queen Releina, maid Maria, and the hero Charlotte’s first children from Seigi have been ripped from their breasts. Only a year old and they are off on their own perilous journey to another world. Follow them as they begin this new Heroes Journey. Will the multiverse survive Seigi’s wrath, and his children’s curiosity?

Titans clash, the world itself trembles in fear. Ragnarok has begun. Will there be a bright future afterward, or will there only be nothingness? All over the world, heroes and demons race to action. In this volume the titanic battle between monsters will conclude, forever changing this world.

Ripples of causality change fate. Some changes are for the better and others not. Inside the Kingdom celebrations of all kinds are happening. While the rest of the world slowly notices the more dangerous changes happening around them. An era of war is coming to the rest of the world unlike what they have ever seen before. Seemingly a new darker era has begun while the kingdom has new rays of hope.

New life is on the horizon. Potential threats and allies gather within the Twilight Kingdom. Chaos is the only certainty. What will come about with these new connections? Who will die who will live? What kind of relationships will be forged? Will they form on the battlefield or in the bedroom? Love and hate are in the air Whom will they ensnare? Will they seduce the King to enter his bed or will they target the lecherous queen? Now entering the story are the new Bride Candidates. What kind of tortured pasts do these women have to make them wish to court a monster?

A collection of side characters' adventures after the main series war arc.

This book is a bit of an oddity compared to my others. These are a collection of stories that are connected but also not. Each story is a tiny look-in on some things that are happening at relatively the same time. This book is meant to be read after book sixteen of Isekai Monster. Technically, its running parallel to book 17. They both end at approximatly the same time.

The Guard Selection Tournament begins! Plots and schemes of all varieties have been set into motion. Will anyone be able to win the hand of the First Princess, Lilynette? Will new bride candidates for the Hero King reveal themselves? But before all of that, we will see what the bride candidates from the Elven Forest and the far-off Nation of Carcosa has to offer. Will Releina allow them to enter her growing family? Will the king's new emotions get the better of him? Will there be more marriages or funerals? Our monster is growing, whether that is good or bad only the future knows. Only the ...

War has come, and soon Peace will be all that remains. This is the birth of the fourth Lord of the Dream, the Lord of Peace, the END.

Ominous winds blow. The Hero Festival enters its final day. This is the end of our first big arc. Who will survive? What scars will be left behind? How exactly will our monster of a hero deal with this new threat? Will his mask fall once again? All these questions and more will be answered in this volume of Isekai Monster.

New enemies and potential allies have appeared. As the hero festival continues, what new alliances will manifest? How will these new relationships be forged? Will it be with blood and violence, or with love and new life? When will the hidden threats make their move what are their goals? One hero has already fallen. Who will survive till the end of the festival? Will our hero be able to keep his secret? Whom might he have to kill to prevent that information from being revealed? Who is the bigger threat?

The world expands. The actions of the hero will have rippling effects reaching farther than anyone could have imagined. Some ripples will be small while others large, some will not be known for some time to come. You will not only see what has transpired in the hero's kingdom but the echoes as well. Loose ends will be tied and others cut. The mysteries of this world are deep and far-reaching.