When I Put up the Strongest Barrier in the Country, It Became Too Peaceful and I Was Banished. They Did Know That That Barrier Isn’t Permanent, Right?

Since I wasn’t blessed with the talent for magic, I have been honing only my Barrier Magic since childhood, and I found myself becoming the best Barrier Mage in the country. Whether it’s the cool Attack Magic, the convenient Magics or the special Summoning Magic, none of those were things I could do. The only thing I’m capable of was really just Barrier Magic. Coming from a commoner’s background and rising through the ranks with only Barrier Magic, I was able to obtain a position as a Court Mage and had a noble lady as a fiancee. My life seemed to be smooth sailing, but at my engagement party, my engagement was broken off and I was accused of a crime I didn’t commit. I was also ousted from my position as a Court Mage, but if I wasn’t there, the Barrier Magic would be broken. Are you really sure about that?