My beloved stepmother who raised me alone was taken away by my worst friend...

Yu-san isn't a real mother. The man my father remarried was Yuu 10 years ago. A year after my marriage, and after my father passed away, I was able to raise a non-blood-related person on my own. As a mother and woman, my wish for Yu-san was to make Yu-san happy. However, his wish is shattered by his bad friend Yuzuru. Yuzuru outstretched me, fake sick and left early and approached Yuu-san. My anxiety reached its peak, so I returned home at a glance...