He used illegal means to make easy money.

My brother contracted hepatitis B.

Kono hen wa niteinai ga, uchi ni aru kyōbō na mono o, mossari atama de bōyō toshita kanji ni saseta manuke men de kakushiteiru tokoro ga niteita.This part looked different, but it reminded me of the ferocious thing in my house, the dim-witted head with a vast look and hiding a stupid expression.