The song is called sayonara. It’s a pun on sayori’s suicide. Pretty clever if you think about it

Greetings! The name is Time Lizzy, or Time as my friends call me. They/Them pronouns. I love to try new things, draw, sing, dance, garden, and I do some witchcraft in my free time. I'm a Hetalia role playing partner if you guys are interested. View all posts by Time Lizzy Saint