Best Japanese original song by k-pop groups?

As title says, there are many k-pop groups who has released Japanese albums in their career. I'm curious what's best Japanese original song by your fav in your opinion? One or more than one it doesn't matter. I'll go first, Your Eyes Tell, Don't Leave Me, Film Out by BTS.

Edit: I'm going to take replies under this as recommendations. Thank you♡

Edit (2): omg???? I didn't expected this much response damn!! I'll make sure to go through all recommendations♡♡