Xia SuishenAⅹDuan HengyeO
Seven-year-old Xia Suishen didn't know what protectiveness was, he only knew that he wanted to protect Duan Heng.
Seven-year-old Duan Heng didn't know that he was being protected, he only knew that he took good care of him.
Seventeen-year-old Xia Suishen got him under protection.
Seventeen-year-old Duan Heng also received love while being taken care of.
Concept: O is for love