No, it's not that. I've gotten the star, and haven't touched that yet. Well, that's a like. I've gotten my ass beat by Yuugi v.2's Knockout in Three Steps. 200k damage to 100% defense buffed Meiling with 30k Defense and 300 Fire Affinity. Yikes!
Later wipe to Saigyouji Flawless Nirvana.
How does one survive against Okuu? Damage dealing isn't a problem (Kanako's Beautiful Spring Like Suiga can hit for 900k-1mil with buffs, Nitori's packing at least 600k, as is Shiki), but staying alive is. Iku with 36k mind and buffs and 250 fire affinity gets hit for 50k, which is 14k more than what mine has.