I wanted to make a poison which can kill a Hourai person. That didn't quite work out.

And then a problem arose from within.

Su-san hid in a sack to surprise me.

I had no choice but to end her life before she could discover my secret any further.

I wanted to put the unmoving poison doll to good use.

So I turned her into a guard robot.

Other than poisons to kill Hourai people (the original), I tried my hand at creating drugs to strengthen Houraians (me).

I made the smart but weak Udonge -- Mini-Udon into my lab assistant.