The week after Haruto's quirk awakening was hell.
Dr. Yamada ran tests. Lots of tests. Blood work. Quirk factor analysis. Endurance measurements. Growth pattern documentation.
"Your quirk factor has increased by forty percent," she announced, showing charts that meant nothing to Haruto. "That's unprecedented for a single evolution event."
"Is that bad?"
"It's concerning. Your body needs to adapt to this new power level. Until then, you need to be very careful."
"I'm always careful."
"You grew a fifteen-foot tree by accident three months ago."
"That was ONE time."
"Haruto."
"Okay, it was several times. But I'm learning!"
Dr. Yamada prescribed rest, reduced training, and "quirk suppression exercises"—basically meditation to keep his power from activating accidentally.
"You need to build mental walls," she explained. "Imagine your quirk as a river. Right now, it's flooding everywhere. You need to create channels—controlled paths for the power to flow through."
"That's very metaphorical."
"That's how quirk control works."
"I preferred the jumping jacks."
At school, Miss Tanaka was informed about the situation.
"Haruto will need accommodations," his mother explained. "His quirk is going through an evolution. He might have... incidents."
"What kind of incidents?" Miss Tanaka asked carefully.
Right on cue, the classroom plants started growing.
"That kind," Haruto said apologetically.
Herbert had tripled in size overnight and was now touching the ceiling. The other plants were following suit—reaching, stretching, responding to Haruto's presence.
"Oh my," Miss Tanaka said faintly.
"I'll fix it!" Haruto focused, trying to pull the energy back. The plants stopped growing but didn't shrink.
"They don't go backwards," he explained. "I can only stop them. Not reverse them."
Miss Tanaka looked at the ceiling-height Herbert, then at Haruto, then at his mother.
"We're going to need bigger pots."
The "incidents" continued.
During math class, Haruto sneezed. Every plant in the school bloomed simultaneously.
"Bless you?" Izuku said, staring at the suddenly flower-covered windows outside.
"Thanks."
"Did you just make the entire school garden bloom?"
"Apparently."
"That's actually really pretty!"
"That's accidental."
"Pretty accident!"
During lunch, Haruto got frustrated with his sandwich (it was soggy). The grass in the playground grew three feet in five seconds.
"The groundskeeper is going to hate me," Haruto observed.
"He already does," Mina said. "He muttered about you last week."
"What'd he say?"
"Something about 'kids these days' and 'respect for lawn maintenance.'"
"I respect lawn maintenance!"
"You make it obsolete."
"That's not—" Haruto paused. "Okay, that's fair."
During recess, a kid pushed Izuku. Haruto's response was immediate and uncontrolled—vines erupted from the ground, wrapped around the bully, and lifted him three feet in the air.
"HARUTO!" Miss Tanaka came running. "Put him down!"
"I'm trying!"
The vines weren't listening. They'd responded to his anger and were now operating independently.
"The vines are ignoring me!" Haruto said, focusing hard.
"What do you mean ignoring you?!"
"I mean they're doing their own thing!"
It took five minutes and Tamaki (who the school had on speed dial now) talking him through breathing exercises before the vines lowered the terrified bully to the ground.
"Your quirk is developing autonomy," Tamaki explained afterward. "It's responding to your emotions before your conscious mind can control it."
"That's bad."
"That's very bad. We need to work on this immediately."
She increased their training to daily sessions, all focused on control.
"No growth exercises," she said. "Just control. Building those mental walls Dr. Yamada mentioned."
"This is boring."
"This is necessary."
"Same thing."
"Definitely not."
Bakugo had opinions about the whole situation.
"Your quirk is going CRAZY!" he said during training. "That's AWESOME!"
"It's dangerous."
"DANGEROUS IS COOL!"
"Not when I can't control it."
"Then CONTROL IT!"
"I'm TRYING!"
"TRY HARDER!"
"That's not helpful, Katsuki," Tamaki said.
"It's MOTIVATIONAL!"
"It's loud."
"LOUD IS MOTIVATIONAL!"
Despite the volume, Bakugo's point stood. Haruto needed better control. Fast.
Izuku approached it analytically.
"So your quirk responds to emotions?" he asked, notebook out.
"Yeah."
"Which emotions specifically?"
"All of them?"
"That's not specific."
"Anger makes it aggressive. Fear makes it defensive. Happiness makes things grow. Sadness makes them wilt."
"Fascinating!" Izuku scribbled frantically. "So it's not just power output—it's emotional resonance! Your quirk reflects your mental state!"
"That's a fancy way of saying I have no control."
"No! It means you need emotional control, not just physical control!"
"INFO-DUMP INCOMING!" Mina warned from across the park.
"Right! Sorry! But this is important! If your quirk responds to emotions, you need to regulate your emotions to regulate your quirk!"
"That's just therapy with extra steps."
"That's STRATEGIC therapy!"
"You sound like Bakugo."
"I DO NOT!"
"WHAT?!" Bakugo shouted from his explosion practice area.
"NOTHING!"
Izuku's analysis actually helped. Haruto started paying attention to his emotional state, noticing patterns.
Angry? Plants got aggressive.
Scared? Plants formed protective barriers.
Happy? Everything bloomed.
Frustrated? Random growth spurts.
Tired? Plants wilted.
"I'm a walking mood ring," Haruto complained to Gerald one evening.
You're a developing child with a powerful quirk going through puberty.
"I'm five."
Quirk puberty. Different thing.
"That's not a thing."
It is now. Your quirk is maturing. Growing up. Getting ideas of its own.
"My quirk has ideas?"
All quirks do, eventually. The powerful ones, anyway. They develop... personalities.
"You're saying my quirk might become sentient?"
I'm saying it's already partially sentient. It responds to your will even when you're not conscious of it. That's basic awareness.
"This conversation is concerning."
Welcome to having power. It's all concerning.
Two weeks after the awakening, Haruto had his first nightmare about his quirk.
He was in a forest—his forest, made from his power. But it was out of control. Growing, spreading, consuming everything. Buildings disappeared under vines. People were trapped by roots. The city was drowning in green.
And he couldn't stop it.
He woke up gasping, hands gripping his sheets. The plants in his room were going crazy—Gerald was twice his normal size, the cherry tree had sprouted new branches through the window, even the small potted plants were straining against their containers.
"Haruto?" His father appeared in the doorway. "You okay?"
"Nightmare."
His father looked at the plants, understanding immediately. "Want to talk about it?"
"Not really."
"Talk anyway."
They went to the kitchen. His father made hot chocolate—the fancy kind with marshmallows—and sat across from him.
"What happened in the dream?"
"My quirk took over. Consumed everything. I couldn't stop it."
His father nodded slowly. "That's a valid fear."
"You're not going to tell me it's irrational?"
"No. It's not irrational. Your quirk is powerful and still developing. Being scared of that power is smart."
"Really?"
"Really. People who aren't scared of their own power are the dangerous ones. Fear keeps you careful."
"Gerald said the same thing."
"Gerald is wise."
"Everyone keeps saying that."
"Because it's true." His father sipped his own hot chocolate. "You know what the difference is between a hero and a villain with the same quirk?"
"What?"
"Control. Responsibility. The willingness to be careful even when it's hard."
"I'm trying to be careful."
"I know. And you're doing great. This evolution is scary, but you're handling it. You're learning. That's what matters."
They sat in comfortable silence for a while, drinking hot chocolate while the plants slowly returned to their normal sizes.
"Dad?"
"Yeah?"
"What if I can't control it? What if it gets too big?"
"Then we'll figure it out. Together. That's what families do."
"Promise?"
"Promise."
The control exercises started to work.
Slowly, incrementally, Haruto learned to separate his emotions from his quirk response. It wasn't perfect—he still had accidents—but they decreased in frequency.
The mental walls Dr. Yamada described started to make sense. He imagined his quirk as a garden (because of course he did). Normally, it wanted to spread everywhere. Now, he was building fences. Channels. Controlled growing areas.
"You're getting better," Tamaki observed during their daily session.
"I haven't had an incident in three days."
"That's real progress."
"The bar is low."
"The bar is appropriate. You're five and going through a major quirk evolution. Three days without incidents is excellent."
At school, things stabilized. Herbert was still huge but stopped growing. The playground grass stayed at normal height. The vines stayed underground where they belonged.
"You did it!" Izuku said proudly.
"I did the bare minimum."
"You did CONTROLLED bare minimum!"
"That's not—"
"It's PROGRESS!"
"You're too enthusiastic about everything."
"And you're too pessimistic!"
"I'm realistic."
"PESSIMISTIC!"
"REALISTIC!"
"Boys," Miss Tanaka interrupted. "Inside voices."
"Sorry, Miss Tanaka," they chorused.
Mina leaned over. "You two argue like an old married couple."
"We do not!" they said in unison, then looked at each other.
"See?" Mina grinned.
"That proves nothing!" Izuku protested.
"It proves everything," Haruto said.
"TRAITOR!"
Despite the progress, Haruto knew this was just the beginning. His quirk would keep evolving. Keep growing. Keep getting more powerful.
The question was whether he could grow his control fast enough to keep up.
One month after the awakening, Dr. Yamada ran new tests.
"Your quirk factor has stabilized," she announced. "The evolution is complete—at least this phase of it."
"This phase?"
"Quirks can have multiple evolutions throughout life. This was your first. There will probably be others."
"How many others?"
"No way to know. But you're stable for now. Your body has adapted."
"So I'm okay?"
"You're okay. Better than okay. Your control has improved significantly."
She showed him the new measurements. His range had settled at a consistent three-block radius. His growth speed was controllable. His emotional regulation had improved.
"You did well," she said. "Many people struggle with their first evolution for months. You adapted in weeks."
"I had help."
"That's why you succeeded. Don't underestimate the value of support."
Haruto thought about his parents, Tamaki, his friends, even Gerald and the other plants.
"Yeah," he said. "I guess I did have a lot of help."
That evening, he sat with Gerald, processing everything.
"The evolution is done," he said.
For now.
"Dr. Yamada said there might be more."
There will be. Power doesn't stop growing just because you want it to.
"That's ominous."
That's honest.
They watched the sunset in comfortable silence.
"Gerald?"
Yes?
"Thanks. For being here through all this."
That's what friends are for.
"You say that every time."
Because it's true every time.
"I know."