Monster Hunter Story -The Last Hunter- The New world now has a new threat. All of the Hunter in the new world were gathered in a Base together with Arithia,Hiyama,Lolita and the others. They was so shocked when knows the people that Arithia protect and Close to her was the one of their enemy in the end. The commander tell them 'Everyone, This may be your last quest and their last step to destroy this world. So, This is not a battle where we can rely on the others anymore. Because this battle, it was a battle that will decided that you will dead or alive. The secret Team of a Killer has meet with us face to face and tell us that they will take everything that we have and kill everyone. So, I want all of you to prepared for the battle and save our world. Everyone, please make us win for sure and make the people in our world smile one more time. Arithia,Hiyama, Lolita,Ray,Hikari and the others. This time i really count on you,Everyone." After they hear the words from the commander, all of them take out their gears and get ready for their last battle. and for this last season a real story about Arithia family will finally revealed and something bad might happened.

A true ending for Arithia and Hikari. in this season they will do their mission with a man that known as Setsuna. to complete their mission as an immortalis in their world.

When they were celebrating a party for Arithia,Lolita and Hiyama suddenly Arithia meet with a unknown person which tell her ' it's not a time to be happy " Arithia was so weird cause he saying a things like that so Arithia ask him ' Why? We already kill Aprho and bring the peace" Then the man say to Arithia ' Maybe you're already kill that monster. but there has something you didnt know about this world"