I know that after Aria Soma loses his souls, but what if he didn't after Dawn?
Please forgive me for any cultural mistakes. I am not Japanese, and most of the cultural stuff I know is from manga. Also I will be omitting Japanese suffixes because they're too easy to get wrong.
Not intended for everyday use
Ghoul
After the incident with Celia, Soma Cruz had returned to his normal life. At least, as normal as the reincarnation of the Dark Lord Who Was Not Voldemort could manage.
Soon enough, thoughts of monsters and evil cultists were banished out of Soma's mind once he returned to college. Hordes of Medusa Heads screaming for his blood? Easy. Remembering how exactly integrals of trig functions worked? Not.
Still, knowing that he would have to someday fight against the forces of evil once more, Soma kept a tighter rein on his souls than before. He had not lost a single one since the incident. At least once a week, he trained with Arikado's Agency.
Sadly, while Soma was generally a responsible person, it wasn't rare for him to abuse his powers. He had promised to himself never to hurt any normal person with his powers, but everything else was fair game.
Like when he returned to his dorm after the whole With Light incident. His roommates were generally clean people, but they had a habit of forgetting about food in the fridge and leaving it for other people to clean up.
When Soma arrived in the empty dorm, he was hungry. The first thing he did after putting down his stuff was raid the fridge. All that his search produced was moldy rice, some fish with suspicious fungus growing on it, and a chunk of rotten fudge cake.
Soma looked at the former food, and remembered what his mother had always told him about wasting food.
He equipped the Ghoul soul, locked the doors, barred the windows, and dug in. The Ghoul soul made everything taste like it was at its freshest, something Soma was greatly thankful for. A superpower that just suppressed the gag reflex and stopped food poisoning was useful but not pleasant. The rice was warm and fragrant, the fish slippery and salty. The cake was a tad sweet, but you can't have everything. All he had to do was dispose of the evidence and not switch souls until the next morning. Once he had eaten a piece of rotten meat with the Ghoul soul on, and then immediately went soul hunting with the Ghost Dancer soul. The result was messy. Soma was glad that in the castle of an evil cultist, he didn't have to care about ruining the carpet. It seemed petty, but somehow knowing that he was spiting Celia made him feel better while writhing on the ground in pain.
A sudden noise made Soma jump. Just the guys from next door playing Smash. Good. Not his roommates. They wouldn't catch him.
His roommates didn't come back until midnight, long after Soma had washed away all evidence. They would probably assume that he had cleaned up after them. Which was true, in a way.
As he lay in bed, Soma realized what possibilities lay ahead of him if he used his souls… creatively.
X
"You're joking," said Kazuya.
"No, I am not," said Soma. "Want to bet?"
Kazuya put up 5,000 yen. "I really don't think you're serious."
Soma looked at the gallon of expired milk in front of him. He double checked that the Ghoul soul was still inside of him. It groaned at him inside the sea of his souls. He checked to see that it wasn't the zombie. That would be a fiasco.
Kazuya turned around to face their other roommate. "Hey, Naoki, Soma here says he can drink off the whole gallon without throwing up."
"What? 10,000 you can't," said Naoki, slapping down a bunch of bills.
Three minutes later, Soma made off with enough yen to pay off his book loans. Kazuya and Naoki had reluctantly forked over the cash, saying that a bet was a bet and are you sure that you're feeling all right? Take some antibiotics or something.
Luckily, although he sprinted out of class later that morning straight to the bathroom, it was from the absurd amount of liquid he had drank in one sitting and not from the fact that it was old enough to vote in the United States.
X
The next time Soma used his soul was rather uneventful.
"Hey! Soma!" Naoki shouted as Soma was walking to class. "Did you eat the fish this morning?"
"Yes?" said Soma. "What about it?"
"Turns out all the hake's off. Something went wrong with the refrigeration while shipping or something. If you get food poisoning, I'll give you my notes."
Soma thanked the shorter first year and privately switched to the Ghoul soul. It might not help when he didn't have it on when consuming the fish, but it was certainly better to try.
Whether it was by his natural digestive processes or by his dark and terrible black magic, Soma did not get food poisoning.
X
"Say, Mina, you know how I'm allergic to nuts?" Soma said while on a walk one day. "Do you think that if I had some with the Ghoul soul on, I wouldn't go into shock?"
Mina thought for a moment. "It's worth a try," she said. "If you did eat nuts without knowing, it certainly would be useful to be able to stave off the effects. Remember the time I had to hose you down? Just make sure you have your inhaler. And that adrenaline shot thing."
So they went to the ice cream shop and got two cones of Butter Nutty Fudge Super Delight. Then they ducked into an alleyway so that the shop person wouldn't feel guilty about selling nut ridden ice cream to someone who was allergic.
"Here goes," said Soma. He took a lick. "Hey, this is good! I think I've missed out on this for my entire li…"
His face started swelling.
"Well, it seems as if this operation is a failure," said Mina. "Should I call an ambulance?"
Soma threw up in response.
In the end, they rushed Soma to the nearest chair so that he could activate his Ouija Table soul and not die right away.
TO BE CONTINUED!
By the way, Soma's roommates are based off of characters from another game series. Guess which one.
Any requests? I'll take some for souls that don't appear in DoS.