Conquering the Academy with Just a Sashimi Knife

Story:

Read manhwa Conquering the Academy with Just a Sashimi Knife / Chew the Academy With a Sashimi Stick / Chewed Up the Academy With a Bag of Sashimi / I Took Over the Academy With a Single Sashimi Knife / 사시미 한 자루로 아카데미를 씹어먹음 “If I slash, it will be cut.” I, who was once called the best swordsman in the nation, have ended up in a mobile game I’ve only spent money on a few times. And I’ve even received the blessing of the ‘Sword God’! But… the only weapon I can use is a sashimi knife? Just one minute a day. I become a Sword Saint with a sashimi knife.