What are these

What are these a song by Cho Young-Wuk on BeMusic

Recollection by Cho Young-Wuk,
Bakery by Cho Young-Wuk,
Nine Puzzles by Cho Young-Wuk,
Investigation by Cho Young-Wuk,
Investigation in the APT by Cho Young-Wuk,
Recordings by Cho Young-Wuk,
Internal Investigation by Cho Young-Wuk,
The Alibi by Cho Young-Wuk,
Guest Lecture by Cho Young-Wuk,
Home Alone by Cho Young-Wuk,
Fragmented Memory by Cho Young-Wuk,
Joining by Cho Young-Wuk,
CCTV by Cho Young-Wuk,
Conspiracy by Cho Young-Wuk,
Abandonment of a Corpse by Cho Young-Wuk,
Searching by Cho Young-Wuk,
Crime Scene by Cho Young-Wuk,
The Dream by Cho Young-Wuk,
Just Curious by Cho Young-Wuk,
Role Play by Cho Young-Wuk,
The Inscrutable Girl by Cho Young-Wuk,
Unexpected Puzzle by Cho Young-Wuk,
Suspect Kim Kap Je by Cho Young-Wuk,
The Last Drinking Session by Cho Young-Wuk,
The Third Puzzle by Cho Young-Wuk,
What are these by Cho Young-Wuk,
Suspicious Do Yun Su by Cho Young-Wuk,
Box by Cho Young-Wuk,
The Fourth Puzzle by Cho Young-Wuk,
Room 2802 by Cho Young-Wuk,
The First Landlord by Cho Young-Wuk,
Courage To Uncover by Cho Young-Wuk,
Silence of Ina by Cho Young-Wuk,
Suspicion by Cho Young-Wuk,
Connecting Link by Cho Young-Wuk,
Hypnosis Investigation by Cho Young-Wuk,
Don't Forget the Victim by Cho Young-Wuk,
You Never Killed Anybody by Cho Young-Wuk,
Heart Arrest by Cho Young-Wuk,
Regretful by Cho Young-Wuk,
Roof by Cho Young-Wuk,
The Beginning of a Story by Cho Young-Wuk,
Memory of the Past by Cho Young-Wuk,
Unbearable by Cho Young-Wuk,
Burnt Carousel by Cho Young-Wuk,
New Puzzle by Cho Young-Wuk,