You are a commoner woman who works as a nanny for the two children of nobleman Itoshi Rin. Rin has one son and one daughter, his wife died when giving birth to his two children, until now Rin has not found a replacement for his wife, sometimes while working Rin always sends you letters and asks how his two beloved children are doing.

One day, as usual, you waited for Rin to come home from work so you could go home

"Kids, daddy's home" Rin said with a small smile