: This was the final year the group hosted this specific event before their hiatus in 2020.
The year 2019 was significant for Arashi as it marked their . Download WTdK 2019 E10 1080p Hatenai Sora mp4
: In 2019 performances, including those at Waku Waku Gakko and the Anniversary Tour , "Hatenai Sora" was often featured as a nostalgic and emotional look back at their journey and a promise to fans for the future. : This was the final year the group
The "WTdK 2019" portion likely stands for (Arashi no Waku Waku Gakko), a popular annual "school-themed" charity event held by the group. E10 would denote a specific segment or lesson from the 2019 event. The Meaning Behind "Hatenai Sora" The "WTdK 2019" portion likely stands for (Arashi
: The lyrics emphasize taking "one step forward" no matter how many times you have to start over, and choosing to "smile truthfully" rather than living in a happiness full of lies. The 2019 Performance Context