Q: How does Tohsaka Rin pay for her living expenses when she is performing sorcery using such valuable jewels? Is she eating up her parents’ inheritance? Has she taken up a part-time job like Shirou? Or has she turned her hand to some other trade?
A: The Tohsaka family seems wealthy, and that’s because it receives royalties from magical patents (theories and rituals used at the Clock Tower. Like real-life patents), so their income is quite high. Even without doing anything, annual income is a solid #0,000,000 yen. ...Although, Rin feels a bit ashamed of this since it’s all thanks to the work of previous generations.