aboutが違かったら何になる？

If I had Anywhere Door, I'd go to Los Angeles. Because I want to meet Ohtani Shohei. If I were there, I'd watch baseball games that he joins. And, If I were there, I'd talk about him with his fan.

を英作文の問題で書いたところ、「about が違う」と言われました。Anywhere Door はどこでもドアです。about の代わりに何が当てはまるのか教えて頂けませんか？