Last Japanese song you listened to?

Hana Uranai-Vaundy

it’s an ost for Boku no Satsui Koi wo shita and the mv has the cast in it ?

Nandemonaiya (from the anime movie Kimi No Nawa) - Orchestra version

I am looking for a music video where someone (the male singer?) was riding a train, in grey colour scale (maybe it was shot in  black/white) and someone in a pink bunny costume was also sitting on the train… it probably was the ending song of an anime…