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I Became a Legend After My 10 Year-Long Last Stand

Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10-nen ga Tattara Densetsu ni Natteita.
ここは俺に任せて先に行けと言ってから10年がたったら伝説になっていた。
여기는 나한테 맡기고 먼저 가라고 말하고 10년이 지나 전설이 되었다
Прошло десять лет с момента, как я сказал «Оставьте это на меня и уходите» и стал легендой
說出這邊交給我你們先走以後十年過去成了傳說。

Adaptation

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With no other options, Luck makes the choice to hold the line against the unending demonic hordes alone, to make sure his comrades can escape with their lives. However, through a combination of fortune, skill, and ingenuity, he holds that line for ten straight years, eventually coming out on top single handedly. Now he has to tackle the dilemma of how to occupy himself in a world where he holds a myriad of roles: that of a legend, that of a veteran, and that of a brand new face. 

(Source: Comikey)