need help finding manga!

[Welci]

old man mc
short hair loli female mc
old man is bodyguard(i think)
meet loli
outside she is an ordinary elementary school girl but inside loli is killer kill for money
old man quit job
join the organization loli is in(theres a secret room in the library and thats the place where the manager(a girl) tell them who to kill)
do killing work with her
blah blah blah work partner bonding blah blah blah

no superpower just gun and murder. i remember a scene where the loli meet her master after he left for years(he look like a teen and now work for famous guy's son(he have that lalo salamanca charisma in him)) hes the one that teach her all the murder skill i think! i also remember a scene where old man and loli get tied together in the middle of nowhere then they managed to break the ties and escape on the car together
sorry if thats too little of detail all i can remember is that i was hooked on this manga!!! sorry for bad english also

 

[ieatass69]

Oh I know this one. It's in one of my browser tabs. I'm not at my pc right now though


Here https://mangadex.org/title/1d73115f-b53f-4c35-85fd-72b958554ec0/candy-cigarettes

God bless browser sync

 

[Welci]

Oh I know this one. It's in one of my browser tabs. I'm not at my pc right now though


Here https://mangadex.org/title/1d73115f-b53f-4c35-85fd-72b958554ec0/candy-cigarettes

God bless browser sync

thank u thats the one, god bless u have a fantastic beautiful day