Exceptional entry, I would have gladly played a full game of this. It's like a bite-size ace attorney, marvellous job.
The case was simple and not too convoluted , which is always a plus when dealing with jam games. Your characters are varied and pleasants. There were some things I found strange, like them having lunch at 6pm, but overall this was probably my favourite entry so far.
(Also love the fact that the culprit went through the trouble of making this elaborated plan instead of simply poisoning the guy. Really feel like the kind of stuff Danganronpa would pull off)
Again, great job.