Des：Renji parted ways with his mother when he was young, and the days he spent with his kind and beautiful mother became healing. One day, he received a letter from his mother. At the reunion for the first time in 20 years, his sons patience broke and he hugged his mother. ``Im sorry. If Renji will forgive me, Mom, Ill do anything... These words turn Renjis love for his mother into a dark desire. His mother and son fall into pleasure while panting with joy on a hot spring trip to reunite after 20 years...