Kyoudai hodo Chikaku Tooimono wa Nai - Vol. 4 Ch. 57 - Glasses & Glasses (Part 2)

[MangaDex]

 

[arcsalvo]

Honestly, it's more likely that the girl will get it than the brother, so it's not much of a threat.

 

[DJBay]

Thanks for the chapter

 

[HGSparda]

She knew she'll also get killed in that scenario
That's not a good threat now isn't it