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.

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.

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.

In a typical fantasy world overrun with heroes and demons. A not so typical princess waits for fate to guide her directionless life. Then one day her fate shifted with the summoning of a new hero. The princess herself calls this hero with her desire for change. However, this hero is unlike any other before him, this hero is not normal. Though she is the only one that knows it. This new hero is undeniably a monster. By every measure he is a monster in the guise of a hero. How will this typical fantasy world and not so typical princess change with this new hero? For even if he is by all ...

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.

Heroes from all over the world gather. To forge new alliances and create new connections. In this goodwill tournament arc. All this happens with an ominous cloud hanging over the city. In this volume, many more mysteries of the world will be revealed. Many more questions will arise. Who will survive? Why? And who or what is working behind the scenes?

Fate's converged and revelations abound as the Guard Tournament comes to a close. Visions of madness flow as freely as love and wine. The air is thick and heavy as strange things gather. Be it man, woman, or monster. The only thing which is for certain is the End will come. This climax of madness will be the end for some and new beginnings for others. Who will survive?

The demons begin their traditional invasion early. With no time to rest our hero must head to the battlefield and fight demons unlike anything, he has ever seen before. Our hero may be strong against humans but these are demons. However, he is nothing like the heroes before him. How will the demons fare against a monster in the form of a hero?

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?

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?

Secrets revealed the veil has fallen. Answers beget more questions as the world unravels. Will our heroes be able to solve the new mysteries in time? Do they have to for the future they want? Does everyone want the same future? The journey into demon territory sheds light on the demon's true nature and this world's secrets.

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.

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.