Hiru wa Baito Leader, Yoru wa Spy no Oji-san ga JK ni Utagawareru Hanashi - Vol. 2 Ch. 10 - Try Attacking Him

[MangaDex]

 

[Ezlsnow]

ドドドドドドドドド
It's the sound of Red going into battle.

 

[JamesBunny]

I just realized this is kinda like spy family with the insane misunderstandings