Adrift on a Sky Island, Only I Can See the Hidden Hints

In the late 2020s, a passage to a new space appeared on Earth. On the other side of the passage there were no planets, only countless islands floating in the sky. A new round of competition between nations began, and Chu Jun transmigrated to become one of the contestants representing Xia in the Sky Island Competition. But what was with the constant prompts appearing by his ear? No way, no way! Could it really be that I'm the only one who can see the hidden prompts?