User blog comment:Imhungry4444/Chapter 246 Review/@comment-3987368-20110815084207/@comment-3987368-20110819123001

So if there are no similar fictional instances that you can remember, how can you call it banal?

When it comes to those who wanted to restore Ichigo's power, Ikkaku and Kenpachi doing so seems in line with their interactions with Ichigo given that they see something of a rival in him. I think I could say the same for Renji.

Being defeated by Ichigo is probably the reason such prideful people gave their power to help him regain his. Ichigo fought and beat Ikkaku, Renji and Byakuya and (debatably) Kenpachi. I'm not too familiar with anything after the Anime's bount arc and before the Isshin, Urahara and Yoruichi vs Aizen part so if there was a fight between Ichigo and Toshiro in between there, It'd mean all of them had at least fought him. If they haven't fought, Toshiro is still the living positioned captain aside from Byakuya, Kenpachi and Ukitake that Ichigo interacts with the most. So in that manner, all of them helping him regain his power and showing up to see how it goes seems perfectly reasonable.