Doraemon - Vol. 16 Ch. 284 - A World Without Sound

[MangaDex]

 

[Adage]

Ig they should have ask for a world where giant is good at singing haha

 

[nisashi13]

Ig they should have ask for a world where giant is good at singing haha

the thing only change thing that apply to the whole world, so the best option should be to ask for "a world without singing"