In present day Japan, "alchemy" is only used metaphorically; to refer to improper means of making money by politicians or religious hucksters with no morals or shame.
啓介さんは、このお屋敷で、ずっとお勉強しているんです。いわゆるホームスクーリングという形ですね。
Keisuke has always studied in this mansion. That style known as 'home schooling', right?
掘っ建て小屋でもいいから自分の家が欲しい。
I want my own house, even if it's a shack.
居酒屋で変なおっさんにからまれた。
I was given a hard time by a strange guy at the tavern.