I don't trust her. But at the same time I can't help but acknowledge the duality of a underground boss who is evil but still has lots of love for family. It's just rather hard to accept considering her character seems very based in a sense of risk and benefit. So I have to ask myself, if love is not a factor and she's lying, what does she benefit by having Rakudou believe her? Perhaps she's trying to use his power indirectly?
Well, let's just believe this is wholesome for now and see how it plays out.