The song is “Puff, the Magic Dragon” ( Peter, Paul and Mary Japanese lyrics by Akiko Fury) sung by Seika(星佳).
   • 今年は辰年🐲パフ年🐉あけましておめでとう🎍🌅  
Video List of Seika(星佳).
   / @hoshihoshihoshika  
My woodworking video list
   / @noho91  
My woodworking homepage　（のほほん木工房）
http://noho91.web.fc2.com/
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I have written a short story on my website about the Smartphone Speaker Dragon .
Please read it.