"Marina" became pregnant with "Yuto" because of her youthful spirit. Her father disappeared from Marina's sight, and her son, Yuuto, was placed in a child protection facility when he was young. As time passed, she was delighted to be able to live with Yuuto again. She has become an adult, and she loves Yuuto so much that she tries to deepen the bond between her parent and child through her sex education.
