Jimi na Kensei wa Sore Demo Saikyou DesuJimi na Kensei wa Sore Demo Saikyou desu; 地味な剣聖はそれでも最強です; The Simple-Looking Sword Saint Is Nevertheless the Strongest; Even if the Sword Saint Is Boring He's Still the Strongest; The World's Least Interesting Master Swordsman; He Looks Like an Ordinary Swordsman, Nevertheless, He's the Strongest; El maestro guerrero es un soso, pero es el más fuerte; 수수한 검성은 그래도 최강입니다; 即使是不起眼剑圣亦是最强; 即便是不起眼的剑圣那也是最强; 即使是不起眼劍聖亦是最強; 即便是不起眼的劍聖那也是最強

A Japanese student named Shirokuro Sansui died because of God’s mistake and was teleported to a different world. He claimed that he wishes to become ‘the Strongest’, so he received a referral letter for a Sage from God and received 500 years of training. When he reached a stage where he could be called as ‘the Strongest’ in the common people’s standard, he picked up a baby near his training grounds, and there, he finally starts his isekai adventure. His training is simple, his techniques are simple, he’s ‘the Strongest’ but he looks simple. With an ordinary wooden sword in hand, the fight of the simple-looking Sword Saint has just begun.