Watch full Sengoku Collection Episode 12 English Subbed online for free in HD. Full HD Sengoku Collection Episode 12 English sub streaming online. Dancing Blossom. Keiji Maeda has gained a reputation as the ‘Saturday Night Rider’ who defends the innocent from delinquent bikers whilst living a double life as a slow-witted store clerk. On one Saturday, when Keiji’s supervisor, Yamaguchi, is targeted by a rapist, Keiji rescues her and takes her on her motorbike whilst she sorts out another delinquent.