LOONA TV #48 is the forty-eighth episode of LOONA TV.
Day two of filming for "Let Me In" begins. Two seals visit the set, but HaSeul was busy in hair and makeup and couldn't go see them. A staff member suggests they go out anyway, and HaSeul gets to see the seals. She calls to them, but they swim away, and she yells "Seal~~~!" (물개야~~~!) after them, creating a LOONA inside joke.
- HaSeul's "Seal~~~!" is imitated by other members in later episodes of LOONA TV.