Twin Seol Ah for the win!
Info from けろちゃ's YouTube.

1. ★6 John+9 (Kill 2, 8, 6, 7, 3, 4)
2. ★6 Victor+3 (Kill 9, 10)
3. ★6 Chalkle+10 (Kill 5 by counter)
4. ★6 Helga+15
5. ★6 Seol Ah+15
6. ★6 Seol Ah+15
7. ★6 Magician
8. ★6 Magician