You're a soul reaper and Zanpakutō's spirits have been getting setting free in the soul society...

And so has yours... Hiryū... So you're looking for a pale skin and with red eyes which is you're Zanpakutō's spirit appearance...

Right now you're looking for Hiryū when you felt someone watching you... And you looked who it was... It was two little boys that were identical twins... And you could tell by there spiritually pressure that their Zanpakutō spirits...