Bruce Wayne, aka Batman, fought for Gotham for half his life and successfully achieved a rare ending of retirement and even good family relations. He lived a leisurely retirement life with the tacit understanding of his comrades in the Justice League.
Then one day, he was approached by a child with black hair and blue eyes.
Calm, self-possessed, bat-like kid: I need your help.
The little birds who were worried about their old father (actually sensed something was wrong):...! !
Bruce, who knows what his children are thinking: ... No, no, don't think about it.
Conception:.
Woohoo, madam, any update?