The Scholar's Reincarnation - Vol. 1 Ch. 21

[MangaDex]

 

[SSS26032002]

They're going to get so beaten up....
But a weapon is not a good decision..

 

[Kaarme]

Back when the MC was all alone, it didn't matter, but now he couldn't accept the idea his cute sister could be hurt, just because he refused her to use a good weapon.

 

[bushwhacker2k]

"I am very skilled in the art of Iron Bending."
Avatar: The Last Iron Bender