Arata The Legend Vol 10

Arata The Legend Vol 10 by Yuu Watase. A Shonen manga rated Teen, published in English by Viz Media in 2010.

Bullied high schooler Arata Hinohara is pulled into a mythical world where he trades places with another boy named Arata, and becomes the wielder of a legendary sword caught up in a deadly struggle for the gods' power. An epic fantasy from the creator of Fushigi Yugi.