Um, not to bug you, but I noticed that Yuyuko's DEF was written in as 532, which I'll presume that it's an error(she's not Tenshi(super hard DEF and MND queen), after all).
Fixed
Edit: Another one too
スキル取得者に行動が回ってきた際、スキル取得者のHPが最大HP未満の場合
スキル取得者のHPが「現HPと最大HPの仲間の値」に変化する。
I thought it was supposed to switch HP, but it only seemed to increase Yukari's HP when she was damaged, while not affecting anyone else
Also for Banquet of Regret and Sympathy, it says
敵を即死効果で倒した場合、即死効果で倒れた敵1体につき
MPが1、HPが12%回復し、全能力が12%上昇する。
And I'm fairly certain I have the right translation (If Yuyuko kills an enemy with a Death effect, she will recover 1 MP, 12% HP and all her stats will increase by 12% per enemy.), but it doesn't seem to proc at all, so maybe I'm doing something wrong? I've also checked and it doesn't seem to proc on enemy that she would not have killed just by the damage alone, but died by the death effect.