one is in edenia as soon as u enter through the portal
another is in edenia behind a house in D-7 its time locked so u have to be there at a certain time
there is one near the water fall in edenia where kira stands and its also time locked ill try and get the times for you
lol i cant remember anymore but wen u get them all shujink will be ur fave charater maybe
he is mine now

There is one on the cave that you find the Earth Kamidogu (dont remember the exact place, maybe is B-8)
The only problem is that only appears on the 16th of every month. You have to meditate a little to make appear.
And remember that Shujinko's moves are a Yin Yang Symbol, so search it.