In a abandoned warehouse somewhere

A peice of Yoru was still in Aki

Yoru: Hayakawa do you want me to send a message to them

He wrote on a piece of paper

Yoru in her bird form flew through the window to deliver a letter form the god devil in the afterlife

Yoru: everyone this is from Aki

Dear Denji Power Kouki and Atsuko

It's been fun all of you. To be honest I already new I was a dead man the moment I watched the gun devil kill my family and destroy my house, the moment I joined public safety. I said I would beat the Gun Devil under any means necessary even if it includes me dying but Kouki saved me. Please don't look for me I'll only bring you pain.
I can't tell you much but STAY AWAY FROM MISS MAKIMA.

Thank you MY NEW FAMILY.

You and the rest of the Hayakawa's erupted into tears

Power: I'm not crying I'm feeling things I don understand!!!

Akko clings onto Power

Akko: AUNT POWWWWEEEERR!!!!

Power clings onto Akko

Power: LITTLE ONE!!!

Kouki: we have to be strong... oh who am I kidding I'm sad too bwaaaaahhhhhh

Everyone: bwaaaaaaaaaahhh

Narrator: in a story filled with tragedy and a world filled with Devils and all types of fantastic beasts nobody is safe weather it is death or a fate so much worse than the other

[There should be a GIF or video here. Update the app now to see it.]

(Authors note: I'm getting too caught up in the chainsaw man elements I need to get to Little Witch Academia main canon quickly)