Remember when Hideyoshi begged Tatsuhiko to stop and he kept going? Could that be part of why he let Ushio go so easily, Ushio did play at his kindness and say Burst would kill him... I mean he was already set up by Ushio, he knows he's not truthful so maybe Tatsuhiko wanted to let him go so another Hideyoshi didn't happen but it was still a little troubling to read him let such a snake go.
Ide is such a hero this arc. Poor guy... Hardly able to mumble I'm sorry.....
And Mayumi still with Ushio.. this arc isn't over yet.