Harry then tells him"don't you worry about having just one parent, where's your dad?"
Otia's grandmother then explains that she has been raising him.
Looking Otia straight in the eye, Harry says: "Life will always be alright, you know that?
"I made it to 34-years-old and life is great I have a beautiful wife and a baby on the way, you're life is going to be sorted don't you worry about that."
The royal then even posed for a selfie with the beaming schoolboy.
Harry then told Otia's grandmother, "You're doing a great job, Nan. Nan's are so important in our lives."
Following their meeting with the royal the 52-year-old grandmother spoke to News Corp, and said: "Harry just said ‘everything will be fine, you will grow up to be strong and positive’.”