So I think there was a manga I read where a mother lies to her child about it's father. Th...

So I think there was a manga I read where a mother lies to her child about it's father. They say the father was a soldier who passed away and they provide pictures. But it later turns out that the soldier is not the father (just a rondom dude) and that the father is actually alive? I can't remember anything else, Can anyone help me?