Shiki’s psychological trauma in Tsukihime originates from two sources: the Nanaya massacre and his adoption. Yukimi’s inability to be a "real mother" fuels his feelings of rootlessness. In the Kagetsu Tohya fan disc, Shiki has nightmares where Yukimi’s face morphs into that of a stranger, symbolizing his fear that her love was conditional.
may never land a fatal blow in a fight scene. She will never appear in a Fate/Grand Order summoning banner as a flashy SSR servant. She will not deliver a dramatic monologue about the nature of death or eternity. But without her, Tsukihime collapses. yukimi tohno