Maybe you didn't trigger the plot of Tsugno haru acting alone.Because making the medicine was done by himself.
you mean triggering that event in which haru goes batshit crazy and aki has to do things alone? yeah i did that and i only have a video set and syringe in my inventory (and 2 more useless things)
maybe ill try watching zeno gameplays on youtube to see if i missed something and then i'll try to complete the game