 After that is done, the DATS members return to DATS HQ and discover that Thomas' old friend Tsukasa Kagura has transferred here and was the one who gave them the tactics to defeat Myotismon.He also tells them that his sister Yuma has gone missing.Arriving at Rage Caverns, Kagura warns the DATS members that their Digimon may not Digivolve into the same Digimon due to the activity in the Dark Area.