Sakyubasu no Tatakai I Help

[fate]

Ok I'm not sure if this is the right place so please don't hate me for posting this here.

I recently started the Sakyubasu no Tatakai Game and I came to a point in chapter 1 that I can't seem to get past I don't know if i got an incomplete version of the game or if I'm just to dumb to realize where to go but I can't seem to get to the stinger boss because I'm not sure where to go.

(I can get past all the bee troops just fine it's just where to go next that has me bothered.

I put an image below on where I'm at.

[shadowrift]

a few rooms to the left there should be a sign post, if you stand at it and press the button promt you should be able to go to the next area