The needle for Tachibana vacillated pretty heavily between Misguided Hero and Psychotic Card Collector during his appearances here, which are his two main modes from Blade, and even his final appearance is him being touched and grateful for the safe return of his trading cards. You gotta keep things ambivalent for him! (I seriously cracked up at him saying "Welcome back... everyone" to his glossy cards of Geats IX and Accel, like he had any interactions with those characters ever on screen over the last 20 years. They couldn't even use the Blade King Form card? Or Fourze Cosmic States, as a cute joke?)

No, but that part's actually really great? The one thing you can count on for the Outsiders is that they will actively resist your attempts to include them in something -- they're the OUTSIDERS. The only way to get them to show up to something is to invite them, get rejected, move on to someone else, and then have them all decide to show up anyway but for their own, slightly contrary reasons. That's this whole show!

1. No, but Asakura killed him afterwards for unrelated reasons.

2. Multiple different versions of Daiji from Revice, so that only I would care that they were just killed, and most viewers would celebrate.

3. Find out for yourself.

It's amazing to me that they gave that line to Asakura, whose whole deal is showing up to games to murder people! They're all just being so contrary!!!

Oh, man, is that what people thought was going to happen?! That would've been such a bummer! To do all that work over, like, four years, and then kill them all off at the end? No thanks!