Hey guys.

I'm out of ideas of how to get the 10th Star ending on Chapter 5.

There's no complete walkthrough of this game(the most complete walkthrough I found shows 8 of 10 possible endings)

I've tried to lit the incinerator to achieve the death of both Ayumi and Yoshiki and let Yuka drown in the bathroom, that are possible to happen in the old/first game of the series, but it seems it isn't possible in this game.

So, what must I do, please?

Thanks.

EDIT: OMG, to achieve the 10th Star you must let Naomi gets eaten by the bugs... I can't believe I forgot that.