about the HP down the toilet bowl with the seats down, what im thinking is that the victim did it as a dying message. im thinking on the one that ordered mapo tofu(is it in chinese? if it is then i know what that food is ) my reasoning is really suck but this is the only thing i can think because i dont quite get some part from justwantanaccount.. firstly, he ordered mapo tofu and some fruits, but later canceled, with the reason 'might not finish them up' or something like that. mapo tofu(if it is chinese) wont fill up your stomach =.=. so he can just eat the fruits but why he canceled? stomach ache? or maybe he needs to go to toilet to do something? that's one.
then justwantanaccount gave another spoiler. this one i can see clearly. about the salt and spicy ramen thingy... ramen is just like any other noodles. they can come in curry, or plain/ sometimes salted soup, dried, or fried (this is the most common kind of noodles found in my country, lol) but i have never seen a noodle that is spiced and salted (except the one i do. i mixed the curry and the salted soup to get more taste ) sold in a restaurant. either he lied about what he ordered, the chef mistook his order, or he swapped his food with someone. look, about the mochi, dont you find them weird? Takagi said, there is a candy laced with sort of cyanide FOUND in his MOUTH. but there is no mochi. so i guess abe-chan is really ame-chan. even if he is talking about abe-chan, then, it is not the mochi that killed him.