avex Taiwan on Tue uploaded a special PV that HSJ made which centred on their cover of Sakamoto Kyu's Ue Wo Muite Arukou
The original link that avex Taiwan uploaded on their YouTube , only those living in Taiwan are able to watch the video
Even though living in Japan like my Taiwanese friends couldn't watch it (they were able to when they returned back to Taipei) , same thing with me :x
Luckily there's bilibili to rely on
https://www.bilibili.com/video/av69628214