I have been thinking it's pop music, but pop music in the West sounds a lot more different and doesn't have a lot of melody to them or at least the type of melody featured in the song above. I need the exact genre and sub-genre, because I am looking for similar songs so I can write lyrics for similar songs.
The Apple music entry for the song categorises it as "J-pop". This is hard to categorise... Melodic pop, but with a club/dance beat also. The Japanese vocal seems to emphasise the melody more than the dance beat, compared with the English version.
There are dance music genres, for example Deep House, which combine a melodic vocal with a dance beat, but in both the Japanese and English versions, the melody is the important bit. I think if you want similar music, you will need to look for specific artists: maybe others here can help with suggestions.