When did you purchase the DLC because all three of those characters are unobtainable if you did not get them within their respective timeframes.

Messaggio originale di Sakamoto:

i bought the DLC with all the characters and songs but 3 of the characters just dissapeared? At first there was miku, rin&len and the arknights chick but they're gone?? help pls <33

These collab characters and their respective songs were once available for individual purchase, but the timeframe to purchase them had ran out. There is two DLC’s, Just as Planned, and Muse Plus. Just as Planned is no longer available for purchase, which came with DLC characters. Muse Plus does not give those collab characters.

Hope you stay! MD has a lot of other collab characters and songs that come free with Muse Plus (El Clear, Reimu, Marisa, etc). Future collabs and updates will be free with Muse Plus, so you won’t have to worry about missing another!