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is ichigo a reincarnation of kaien? i mean i c some possibilities, though kaien isnt really a significant character to be a reincarnation image for ichigo considering he wasnt that strong, although he is a important character... and secondly, if ichigo resembled kaien that much, though i literally thought kaien was someone related to ichigo directly only for the first few pages of the flashback... but why didnt rukia, byakuya, shiba family, or any other shinigamis show any reactions to ichigo's facial appearance, considering he has kaien's face just with different hair color and eye color... or is it simply because the author just made that up during the 3 year trip in writing the soul society arc?