A plot could revolve around Izuku realizing that his energy manipulation quirk is linked to the emotions of those around him. When people are happy, his quirk becomes stronger and more stable. But when they're sad or angry, it goes haywire. So, he has to figure out how to not only control his quirk on a physical level but also on an emotional level. He starts a project to spread positive emotions in his school to keep his quirk in check.
Perhaps Izuku's energy manipulation quirk allows him to absorb and store the energy of other quirks. He initially doesn't know this and discovers it during a battle with a powerful villain. He starts training to master this aspect of his quirk, but it comes with risks. If he absorbs too much energy at once, it could harm him. So, he has to learn the limits while also using this new ability to protect his city.
One possible plot could be Izuku discovers his energy manipulation quirk has a unique side - it can interact with different dimensions' energy. He accidentally opens a small rift during a training session. This leads to a series of events where he has to learn to control his quirk better to close the rift before it causes chaos. He teams up with his classmates, using their quirks in combination with his to stabilize the rift.
Izuku could develop in terms of his relationships. His energy manipulation quirk makes him stand out more. Some people may be jealous, while others are in awe. He has to learn to deal with these different reactions. He may form closer bonds with those who support him and his quirk development. At the same time, he tries to understand the ones who are jealous and convert them into friends or at least neutral parties. This process of handling relationships matures his character.
One idea could be that Izuku discovers his time manipulation quirk late. For example, during a really tough battle against a powerful villain where all seems lost. He accidentally activates the quirk and rewinds time just enough to change the outcome. This could lead to a whole new arc of him training to control this powerful and dangerous quirk.
A great plot idea could be Izuku finding out that his energy absorption quirk is related to an ancient power. He then has to go on a journey to discover the origin of his quirk, meeting different characters along the way who either help or hinder him. Also, he could face a villain who has a quirk that nullifies his energy absorption, forcing him to rely on his other skills and the support of his friends. And perhaps he discovers that his quirk can be used not only to absorb but also to transfer energy, which could lead to some interesting team - up scenarios.
Well, one possibility could be that Izuku uses his dragon quirk to quickly rise in the hero rankings. His dragon powers might include things like breathing fire or having super strength. He could face challenges from villains who are specifically targeting his unique quirk.
Another plot could involve Izuku being part of a secret society of heroes with vampire quirks. They have their own set of rules and ethics regarding using their powers, and Izuku has to learn to navigate this new world while still aiming to be a regular hero.
Another interesting plot idea is that Izuku's quirk evolution is tied to his emotions. When he experiences strong positive emotions like hope or love, his quirk becomes stronger and evolves in unexpected ways. For instance, it could manifest as a healing ability in addition to his existing powers. This would make his character development more complex as he has to learn to manage his emotions not just for his own well - being but also for the sake of his quirk evolution.
A possible plot could be centered around Izuku's struggle to control his Phoenix quirk. Since it's such a powerful and volatile quirk, he often loses control. This causes problems not only for him but also for his friends and the people around him. He then has to seek out an old, reclusive hero who once had a similar quirk to learn how to master it.
One idea could be that Izuku's time quirk allows him to reverse time for a short period during battles. So he can correct his mistakes and outwit his opponents. For example, if he made a wrong move in a fight against a villain, he could reverse a few seconds and choose a better strategy.
Well, one possible plot could be that Izuku's scary quirk makes him an outcast at first. People are afraid of him, but as the story progresses, he learns to control it and use it for good, proving that appearances can be deceiving.
His relationship with All Might would also be affected. All Might might be more cautious about Izuku's quirk as it's very powerful and could potentially disrupt the fabric of time. Izuku, on the other hand, could use his quirk to go back and learn more about All Might's past, which could strengthen their bond as he gains a deeper understanding of his mentor. However, it could also create a rift if Izuku discovers something in the past that he doesn't like about All Might's actions.