This is from A-1 Picture's TV Special of "Kaguya-sama: Love is War"

Kaguya-sama: Love Is War Stairway to Adulthood | Kaguya-sama wa Kokurasetai: Otona e no Kaidan

After many battles of pride and clever schemes, Shuchiin Academy’s sharpest couple, Kaguya Shinomiya and Miyuki Shirogane, finally begin to face what comes after love. In this heartfelt TV special, Kaguya revisits cherished memories with Miyuki and their friends as they reflect on growing up, the bonds they’ve forged, and the next steps toward adulthood.

DISCLAIMER
I own none of the content shown in the video.
All video and audio is owned by Aniplex Inc.

#かぐや様は告らせたい #KaguyaSama #KaguyaSamaLoveIsWar