I think this is an easy one: Can I check that Jikininki triggers once for every other figure that is killed, even if it is also being killed at the same time e.g. Seppuku or losing a Battle. So potentially quite a few VP and Honour points lost in this way.
Probably, but this is a really poorly worded card. It would have been so simple to write it without ambiguity. Either "For every figure killed..." or "Each time one or more figures are killed..." would have solved the problem.