I'm quite disappointed after watching this. I hoped that this special would have concluded the series but it doesn't. They just say a lot of thinghs with no explanation like "neiru is an Ai" and futhermore they end the series with Ohto coming back to the egg machine leaving the final open. Now there are two options make a film or a second season where they explain everything they left open or end here the series ruining it.

death note

Clannad After Story
That anime hitted me like truck kun hitted any isekai mc