Vol12 has finished being translated in Chinese. I am tempted to go 'Worst. HnA Volume. EVER.' on this... Vol10 had bad development, but at least it wasn't full of holes like this volume.
Spoiler for Vol12 rant:
Apart from the ones I've already said, ch5 had the author doing cheap shots on Chinese blades/products being mass-produced and unreliable. The 'Go for the next' section is no better, with Riko buying a building out of nowhere, Shirayuki in tsun-mode fighting Wukong evenly with a spear
when Kinji had to use the 'Sakura' + 'Autumn Water' technique (the combination that allows him to catch bullets with his bare hands)
just to keep his arms attached to his body against Wukong's monstrous strength
[1], Wukong suddenly have a pair of panties on her when 3 minutes ago in that fight she didn't have any on, and finally Wukong going
One Winged Angel on Kinji.
[1] Though having said that, it appears Wukong is wary against Shirayuki because her ancestors sealed the last scarlet irokane deity and she's powerful against youkai. Whether this is adequate reasoning is debatable.
Author's afterword, he mentioned this is part one of two. Fine, I guess this is acceptable... But then he went and said he have no idea how to write it so Kinji stands a chance against Wukong's laser eyes and hopefully he'll think of something by the next volume. I really hope he's kidding about this >.<
*beep* this. If HnA fails this hard next volume as well I'll probably drop this series.