"Ashura Doji" IS Shutenmaru. When he served Oden, he used the name Ashura Doji, but after the incident happened and he went to his current "thief" path... he started using the name "Shutenmaru". This was briefly mentioned at his introduction before.. Just needed to connect things xd
AU isn't going down.
App isn't working for a lot of part because of AUEngine being down, due to a lot of things (more details in Discord).Only Anime with AUEngine & FastStream 2 work on the App.
as for the Play Store, it's been said loooong ago on Discord that it's because Google removed the app from their store, so they won't renew the contract. Your only way is by using the apk file found in the footer or on Discord. Practically, join Discord to stay up-dated with info on AU, AF & App).