Well... I would never be one to say that magic or magecraft brings happiness. In fact what you have the book open to now are the types of familiars my sister was infected with.

[There's no reason to play cards close to the chest with Atsumu. If she's raising him as her apprentice then he deserves to know more about magecraft. The world it comes from, and the darkness it harbors. Besides... this could very well just be a dream, no? It's all familiar, but it's also all wrong.]