At the dead of the night.
Assailants broke into the young Ken's house, where he was thrashed at, as he had no actual strength to protect neither the women he believed to be his whole world, nor himself.
In that world of his, another man existed till the day's morning, but now that he had ceased to exist, the pair of women who were his whole world were his responsibility to protect, but he couldn't do that in the same day he resolved himself that he'd protect them even if he had to put his life on the line.
He certainly did put his life on the line, but a bit of thrashing and one blunt impact at his head was all it took to put him in a half dead state before he was tossed aside to die; in that state, he could do nothing but gaze at the man and a boy do things to his mother and younger sister, he couldn't understand at his tender age…..
But,
What he did understand was that he wasn't allowed to let those men live!!
That was the first time;