Yukimi Tohno -

When Shiki Tohno (the protagonist) was adopted into the Tohno family as a child, it was Yukimi who accepted him with open arms. While Makihisa saw Shiki as a dangerous tool or a potential rival, Yukimi offered genuine maternal affection. She read him stories, tended to his childhood fevers, and tried to shield him from the family’s dark underbelly. However, this kindness came at a terrible price.

In contrast, her relationship with her biological daughter, Akiha Tohno, is equally complex. Yukimi loves Akiha, but she also fears her. As Akiha matures and her own Tohno blood (the "Reversal Impulse") begins to stir, Yukimi sees the same darkness that consumed her husband. She raises Akiha to be strict, restrained, and ashamed of her heritage—a psychological burden that manifests as Akiha’s famous "heat disorder" (hysteric condition in later routes). The Tohno family is one of the "Demon Hybrid" families in the Nasuverse—humans who interbred with non-human entities (Oni). These families are prone to Hampukusei (Inversion Impulse), a phenomenon where their demonic blood takes over, turning them into violent, inhuman monsters. yukimi tohno

Because Shiki possessed the "Mystic Eye of Death Perception," Makihisa forced him to live in a separate mansion, isolated from the rest of the household. was powerless to stop this. Her tragedy is that of a mother who must obey the demon-blooded patriarch to survive. She visits Shiki in secret, but her inability to fully protect him creates a deep, unspoken guilt that haunts her throughout the narrative. When Shiki Tohno (the protagonist) was adopted into