3 years ago on April 1st, the Royal Bridge Train created by the Sanada Foundation was boarded by 300 passengers. However, a terrible accident occurred and only one passenger survived the ordeal. The day was henceforth dubbed Red Bloom Day, the day when red sakura petals covered the earth.The lone survivor was Sanada Ryuu the son of Sanada Genji and heir to the Sanada Foundation. His troubles are not yet over because it seems that during the accident, Ryuu awoke to a newfound power. A power, that appears to be nothing more than a curse. Now living with this curse and also physically scarred by the incident, Ryuu must find a way to cope with the overwhelming change in his life. Losing his last family member, being a 16 year old heir to a large corporation and living with eyes that show him nothing but despair. However,with the the help of his personal aide, he soon starts to have a dream. A dream that through that despair, there is hope. A dream that his curse, could hopefully be a gift.