New Student

This story is about The Mystery Of Demon Sword
One day, class 5A7 make a trip to Mountain Minahiro
But something bad has happend
Shin Kurosaki,Keito Ken,Mirane Miho and Natsune Tetsuya
Was trap underground because of the earthquake
Then ,they discover a mysterious door underground
They all go through the door with hope that they will found the way up.
That door was connect through another world
They need to find 4 Legendary Demon Sword before The Evil Group found it
The evil group are called 'Dark Spirit'
They will do anything to get that 4 Legendary Demon Sword