"What -Japanese ver.-" is the debut Japanese single by Dreamcatcher. It was released on November 21, 2018. The music video for "What" was released a week earlier on the 14th.
The physical release comes in three editions: a normal CD edition with a random trading card (1 of 8) (for first presses only), and two limited CD+DVD editions (Type A & B) with an included event participation ticket.
The single is included in their first Japanese album The Beginning Of The End.
- "What -Japanese ver.-" - 3:28
- "Chase Me -Japanese ver.-" - 3:11
- "I Miss You" - 3:06 (Digital & Normal Edition only)
- DVD (First Press Limited Edition A only)
- "What -Japanese ver.-" music video
- "What -Japanese ver.-" making video
- DVD (First Press Limited Edition B only)
- "Welcome To The Dream World" World Tour "Tokyo" live digest video