Mom, Why Did I Have to Call You Auntie?

After 15 years missing, my parents finally found me at an orphanage. My mother cried, saying she never stopped looking for me. But their adopted daughter, Iris, cried whenever I called her "Mom," so I had to call her "Auntie." I gave Iris everything: my room, my birthday, even my only family photo. My brain tumor caused memory loss, but they thought I was faking it for attention. Only when I forgot who Mom was did she finally panic.