Rieka is cheating on her behalf man, again. Her current fling was clueless that Rieka's man can be a powerful yakuza boss until his underlings arrived to deliver punishment. It doesn't phase Rieka much, until she finds out she actually is to get punishment as well. Or perhaps this is what she hoped for in the first place.

Hasukata Ren - a welfare officer, drives from property to property, trying to help those with various problems. But she isn't even realising that you've a fine line between going after dark call of duty and just like a slut.