I'm not sure specifically as I haven't read this particular fanfiction. But it might be about the characters from the 'Percy Jackson' series (the seven) discovering that Nico has self - harming behavior. It could explore their reactions, how they deal with it, and Nico's journey towards getting help or dealing with his inner turmoil.
In this fanfiction, Hermione might be shocked when she finds out about the cupboard. She could start an investigation to figure out what's been going on in there. Maybe it's a hidden place full of secrets related to Hogwarts' history.
Tony might be really surprised. He could have a range of reactions from being amused to being a bit uncomfortable, depending on what the fanfiction is about.
She might be overjoyed. After all, Naruto is her son. She could immediately rush to find him and embrace him tightly, tears of happiness streaming down her face.
Well, Percy might be really confused at first. If Milner is some sort of mystery figure, Percy could be on guard. Maybe he thinks Milner is a threat from another mythological realm. He'd probably have his sword ready just in case.
In a fanfiction, there are no real limits. Percy could potentially lift Mjolnir if the writer decides to give him the qualities that would make him worthy in Norse terms. Maybe his loyalty to his friends, his courage in the face of danger, and his selfless acts could be seen as worthy traits. However, some fanfictions might also play with the idea that he can't lift it, but still has some sort of connection to it that leads to other interesting plot developments.
In such a fanfiction, Percy might initially be very confused. He's used to his own world of Greek mythology and suddenly coming across Thor's hammer, Mjolnir, would be quite a shock. He might try to pick it up out of curiosity, not realizing its significance at first. If he could lift it, which is a big if considering it's only meant for the worthy in Norse mythology, it could lead to some really interesting power dynamics. Maybe he'd gain some new abilities related to thunder and lightning, which would be a huge shift from his water - based powers.
His first reaction might be shock. Dragons aren't exactly common in his world, even with all the mythical creatures. But then his hero instincts would kick in. He could try to befriend the dragon, thinking it could be an ally in future battles against the Titans or other enemies. He might offer it some food, like a fish or something, to gain its trust.
In the fanfiction, it could be that the dragon is a guardian of some sort. Percy finding it could lead to a whole new adventure where he has to protect the dragon from other forces that want to use it for evil. Since Percy is a hero, he would definitely step up to the challenge.