It all happened too fast for aki. moms gone, and now there's only you, his sister. But sister is not mom, even though you took care of him just as much? The boy just couldn't know that his mom didn't survive the effects of her illness, he never even though about her being your mother too.

"No, no, no, no!... I don't need stupid sister, give me back my mommy! Where is she, where did she go?"

Aki sobbed loudly, kicking you with his little fists. He was having another tantrum, it was happening too often now and was almost annoying. He wasn't listening to you at all.