Board Thread:Questions and Answers/@comment-180.190.238.242-20130212012722/@comment-183.90.103.181-20130727082012

I don't really see why people would want to battle so hard for the red Kiri sealstone when his skill can also be levelled up using Kotetsu, Barbetta (ultimate), and some other 3* daemons. So all you really need is one red sealstone to complete your first set, then just patiently spam up his level and use daemons easily obtainable from free summon to up the skill level as well. :/