PDP Shard of Dreams Postgame Guide: Heaven

Use your Gap Map and go to the page with the four gap points. Select the one on the bottom right to go to Heaven.

There's an Old Man right where you gap in, but he won't fight you.

If you go down there's just some grass containing Ichirin, Suika, Raiko, Iku, and Tenshi, all levels 64 to 66-ish.

Anyway, go left and cross the bridge. There's some grass to the left and some water. Nothing to see here. Continue up.

Eventually, you will run into Iku Nagae. She will fight you with a level 66 SeigaS, level 66 GyokutoS, level 68 IkuP, and a level 66 SagumeP.

Continue along past her. Don't go up the stairs near her yet though. Go down the stairs a bit to the left of her and then up through some flowers to a Yin Yang Orb containing an Art of Combat, and then go back to Iku and up the stairs directly to her left.

Before crossing the bridge, pick up the Yin Yang Orb containing  an Ecstasy Set. Cross the bridge, and go up (not right).

Keep going up some steps until you see a Ghost (who won't fight you). Cross the bridge to the left. You'll see some water and a Yin Yang Orb to your left, but just ignore them for the moment because we'll get them in a minute. Go up the steps instead. Keep going and go down some steps, and then down more steps when you see a guy. Cross the bridge below and pick up the Yin Yang Orb on the other side containing a Straw Doll. Go back up the bridge and back up the steps near the guy. Then go left and hop the nearby ledge to pick up a Yin Yang Orb (the one you saw earlier) containing something that I can't find on the wiki's item list I think. Go down the stairs and cross the water, going left. Continue left and go all the way back down until you see the bridge that goes down.

Go right. Go up when you can and into some grass to pick up a Yin Yang Orb containing another Ecstasy Set. Go back down and keep going right and up some steps. Ignore the water and keep going up steps. You'll eventually see Tenshi.

Tenshi will fight you with a level 70 IkuP, level 70 SuikaP, and a level 70 TenshiP (with Indomitable, of course).

Once she's defeated, enter the water to her right and go down the waterfall. Continue down the water and down another waterfall. Exit the water onto the left side. Go down and cross the bridge, then hop the nearby ledge to pick up one last Yin Yang Orb, this one containing another Ecstasy Set.

And that's all there is to see here! Gap out and the next stop is the Netherworld!