Saikyo No Isekai Yarisugi Ryoko Ki [Light Novel]

[Machine Translation] I, Ayato Kotoyu, was invited to another world because I am the strongest person in the world. I was given the privilege of having the maximum aptitude for all magic, and I was free to live my life as I pleased, making full use of the martial arts I had trained to become a master at. I defeated the current Demon King, who mistook me for a brave warrior, and I also made friends with demons and dragons.... But reality was not so sweet. I enjoyed the banquet at the demon castle, but for some reason the cage hand on my equipment changed to look like a dragon, and my apprentice gave me a shocking message of love... It seems that my life in another world is full of troubles. I had just returned from the demon continent and was taking a breather when, at the very last moment, one of the biggest troubles ever occurred. It seems that if things continue as they are, the world will be destroyed, and the cause is... me! I can't believe it's me! The end of the story is in a fog of confusion! The overdone adventure fantasy is now complete!

「世界で一番強いから」、そんな理由で異世界に招待された俺、小鳥遊綾人。全魔法適性MAXという特典を貰った俺は、鍛え上げた達人級の武術を駆使しつつ、自由気ままに暮らしていた。俺を勇者だと勘違いしてた現魔王を討伐し、ついでに悪魔や竜も仲間にして大団円...と思ったら、現実はそんなに甘くなかった。魔城で宴会を楽しんだまでは良かったが、何故か装備の籠手が竜っぽく変化したり、弟子から衝撃的な想いを伝えられたりと、俺の異世界生活は厄介事が尽きないようだ。魔族大陸から帰って一息ついたのも束の間、最後の最後に史上最大級のトラブルが発生。このままだと世界が滅びるらしいんだが、その原因は...まさかの俺自身だって!?波乱の連続で結末は五里霧中!?やりすぎ冒険ファンタジー、完結!