Ugh~ I really hate those self-destructive types of seals.
"Let's have someone with wonderous abilities, then by choice get them cursed to self-destruct whenever they use them!"
Why?! So wasteful! It's one thing if they were never able to freely use the power in the first place (power too great for their body or something), but to have it and then by choice turn it into something suicidal to touch just really SUCKS!
Also, before anything gets upset I'm not complaining about the story, the characters, the author, the state of the world or some freaky political delusions, etc, etc. Only that the concept of turning something beautiful (her magical gift, also her teachers life-gift to enable her to better use her gift) into something so negative and self-degrading (for no reason at all!) just grates on me so hard.