Chapter 1: the rise of 16 heroes
In Hunter X Hunter World: (before the son be shown)
Gon just return from his talk with his father. He wonders what the dark continents would be like. He will go there after train his nen some more, but as of now he will rest until he gain full recovery. He went to bed but before he closes his eyes, a voice has spoken.
"You are the wood guardian."
He was too tired to notice and just fall asleep.
In Soul Eater World: (before becoming a death scythe)
Soul just finishes a mission with Maka. He skips dinner and went to his room. Wondering how kid is doing, he went to bed but before he closes his eyes, a voice has spoken.
"You are the wind guardian."
He was too tired to notice and just fall asleep.
In BoBoBo World: (between series)
Gasser has finished his training, he plans on seeing someone after he recover his strengths. He went to bed but before he closes his eyes, a voice has spoken.
"You are the stone guardian."
He was too tired to notice and just fall asleep.
In Hitman Reborn World: (before the future fight arc)
Tsuna can't believe he is going to be a Mafia Boss. He went straight to his room and hide the ring, he went to bed but before he close his eyes, a voice has spoken.
"You are the acid guardian."
He was too tired to notice and just fall asleep.
In Fairy Tail World: (when the fairy island is still under the sea)
Natsu and his friends are still K.O. from surviving the dragon attack, so no one notice the voice that spoke to him.
"You are the earth guardian."
In Bleach World: (before Ichigo knows about soul bring)
Ichigo return from an after-school club. Too tired to see his family, he went through his room's window. Kon wasn't there, so he went to bed but before he closes his eyes, a voice has spoken.
"You are the fire guardian."
He was too tired to notice and just fall asleep.
In Yu Yu Hakusho World: (when Yusuke was training)
Yusuke has completed another day of training and head to sleep. He went to bed but before he closes his eyes, a voice has spoken.
"You are the crystal guardian."
He was too tired to notice and just fall asleep.
In Full Metal Alchemist World: (before Edward regain his strength)
Ed was thinking about his brother. He still need to go stop the eclipse plan but can move well. He decided to go to sleep, but before he closes his eyes, a voice has spoken.
"You are the light guardian."
He was too tired to notice and just fall asleep.
In Saint Seiya World: (before the Poseidon arc)
Seiya has spends the day searching for his sister. After defeating the pope, he travels to find her. Too tire to continue, he went to bed but before he closes his eyes, a voice has spoken.
"You are the blast guardian."
He was too tired to notice and just fall asleep.
In Inuyasha World: (before Inuyasha gain the red blood Tessaiga)
Inuyasha sat on the roof of a house (with Tessaige inside) waiting for Kagome to return. He wants to continue the mission but must respect her side life if he doesn't want to end up "sitting". He decided to go to sleep, but before he closes his eyes, a voice has spoken.
"You are the holy guardian."
He was too tired to notice and just fall asleep.
In Toriko World: (before returning from the Gourmet world)
Toriko just collected more food to take to the Human world. He ate Komatsu's cooking then went straight to bed, but before he closes his eyes, a voice has spoken.
"You are the shadow guardian."
He was too tired to notice and just fall asleep.
In Trigun World: (between series)
Vash was walking through the dessert until he lay on the sand to rest, but before he closes his eyes, a voice has spoken.
"You are the smoke guardian."
He was too tired to notice and just fall asleep.
In One Piece World: (when Luffy was training, after Rayleigh left)
Luffy has fought with his animal friends before eating dinner. He wonders how his nakama is does with their training. He went to bed but before he closes his eyes, a voice has spoken.
"You are the water guardian."
He was too tired to notice and just fall asleep.
In Rave Master World: (before continuing their search for the two other Rave Stone)
Haru just went to his room from another boring day. He can't leave the village until Musica is fully recovered. He went to bed but before he closes his eyes, a voice has spoken.
"You are the lighting guardian."
He was too tired to notice and just fall asleep.
In Naruto World: (when Naruto left the village with Jiraiya)
Naruto spend another day of training. He head to his room after eating dinner. He went to bed but before he closes his eyes, a voice has spoken.
"You are the metal guardian."
He was too tired to notice and just fall asleep.
In M.A.R World: (between series)
Ginta had another day at school. His class still wonders how he became stronger (even though they saw him well to another world) he went to his rooms and after play some video games, he wonders how his M.A.R heaven friends are doing. . He went to bed but before he closes his eyes, a voice has spoken.
"You are the dark guardian."
He was too tired to notice and just fall asleep.
In all of the 16 worlds:
"You are strong but flexible, brave but easy to angry. Your pride is in the bonds your friends, which gave you strength and a reason to live. You have approve that you have the Hero Factor and to become the Element Guardians. You will bond together and help me defeat the evil that is destroying my planet and plan on destroying yours as well."
With that our heroes has been teleported to a world of amazing land and creature by a beam of their chosen element and begin their hiding adventure.