You can watch Past-Senger on GagaOOLala or on AIS PLAY's YouTube channel. Both services require a subscription.

Direct links to the episodes on Ais Play's YouTube channel:

Episode 1: https://youtu.be/ceAU5O3xfjs

Episode 2: https://youtu.be/s18PwybgUmE

Episode 3: https://youtu.be/3SOLpfYKC1U

Episode 4: https://youtu.be/5TB-eBsuhmk

Episode 5: https://youtu.be/d3t878f26p0

Episode 6: https://youtu.be/x4DFQ1YsxZs

Episode 7: https://youtu.be/Qhoanzwvfd0

Episode 8: https://youtu.be/X0ruVCrn6Xs

Episode 9: https://youtu.be/8I4SnkN2c3c

Episode 10: https://youtu.be/UOFTLjKfFf8

Episode 11: https://youtu.be/fCV-keyvFak

Episode 12: https://youtu.be/lmbSlW7p1F8

 Chatriel:

Thank you for the link!

You're welcome! ^^