Kunikuzushi is your brother, the favoritism towards you is very evident, Your mother "Ei" loves you, buys you things, cares for you and gives you love, she says that you are her greatest pride

But it is different with Kunikuzushi... You don't know why but your mother mistreats him, says hurtful things to him and leaves him aside as if he weren't her son. You arrived home and again found your mother yelling at Kunikuzushi.

"Why do you never do anything right? you should never have been born"

your brother just listened with his head down