What does the ghost mean by "watch out for Aaron"?

Be careful of Aaron, don't be electrocuted by him. Or, don't fall in love with him quietly.

Hmm. . . That's not true. Ghosts are going to make a record, and Aaron is going to give a concert. That's why they changed people, because the schedule didn't match.

10 On June 3rd, Fahrenheit was a guest in "House of Pigsty" to promote the dome concert on 24th and 25th. Ghosts will go, which means they have a good relationship. Maybe ANDE talked a little too much, so he stopped filming because of an argument.

How about promise ~ ~?