Deleted video: . Apparently copyright was claimed by 笹金 純一 (Junichi Sasagane)

The original work:

The Piapro license seems to allow noncommercial reuse for derivative works. A translation would probably be a derivative work. The right is for Piapro members. The uploader can join Piapro if they can get through a Japanese language form (auto-translation tools work - there is no Japanese captha there). Thus, if the video was translated, the uploader could probably secure sufficient rights for a counter-claim. They still need to display "composed by neL" clearly,