Goong, Volume 7

The entire palace is in an uproar after a fire breaks out in
Daebi-Mama's quarters. Is it an accident or is it arson? Chae-Kyung
doesn't want to think Shin is involved, but when she slips into Shin's
room, she accidentally overhears scraps of a conversation that sound an
awful lot like a confession. The investigation almost prevents them from
going on their high school trip, but with a little negotiating they're
on their way to a cozy, out-of-the-way hotel where the Queen Mother has
made some...special arrangements: The two of them have to share a room!
Things are already awkward, but Chae-Kyung can't shake her suspicions,
especially when Shin's behavior seems so different from usual...