After Yujiro has beaten Baki into unconsciousness, decimated his friends, and killed his mother. Baki is walking through the streets, happily talking and joyfully describing how wonderful it is to be such a loving family while carrying his mother on his back. A stranger bumps into him and reveals that he was imagining it all and is only carrying a ring while wearing the bruises and scrapes from his fight. He screams out much to the dismay of the people on the street, fumbling after the ring that belonged to his mother. Crying, he laments.
Baki: Not just yet mister. Let me hold onto this for just a moment longer.
Much more intense on the manga, where he isn't carrying her mom's ring. He's carrying her mom's corpse.
Emi's final moments with her son Baki; they're probably the only time Baki will ever have a (somewhat) normal parent-son relationship. You WILL hate Yujiro afterwards.