[Comprehensive] Everything is for the enjoyment of life

"Miss Bayliss." After the Transfiguration class, Professor McGonagall stopped Catherine and gave her a note, "Headmaster Dumbledore asked you to visit him after dinner. He gave it to you."

"Lemon Blowing Candy?" Catherine read out the password above, "Well, it tastes good."

After all, Catherine didn't do anything that might endanger the wizarding world. She was just a little girl who broke some rules because she cared too much about friendship. Principal Dumbledore treated her very kindly.

When Catherine explained everything clearly, Petunia blinked wrongedly with her and said, "So, principal, you won't blame me, will you?"

"Oh, of course not, we'll excuse a young man's impulsiveness. Ah, friendship, that's a wonderful thing, I'm so glad you've got it, and I sincerely hope your bond will last as deep as it does. But Miss Evans is Six years at Hogwarts? No, no, no, I don't mean anything, just you know, Miss Evans is going to come back to live in her world."

"Of course not. Petunia will go back at Christmas, and come back when school starts in September of the next year. After all, Muggle school courses cannot be missed." Catherine looked at Dumbledore's expression a little stiff, and couldn't help prodding him again For a moment, "What's more, Petunia also shoulders the heavy responsibility of making up lessons for me."

"Miss Bayliss, why are you taking Muggle lessons?" Dumbledore tried to maintain his kind expression.

"Of course it's because wizards don't have this part of their studies!" Catherine said with an expression that you don't understand such a simple thing, "Wizards only learn how to use their abilities and remember their history, but they don't care about the world around them at all. Why? Can we light wood? Why do boats float on water? I need to know, the wizarding world can't provide it, so I naturally look to the Muggle world for it."

At that time, Catherine just wanted to complain and stimulate Dumbledore by the way, she did not expect that this would make an important contribution to the reform of the Hogwarts curriculum.

——————————Christmas dividing line——————————

"Cathy, I'm leaving." Petunia stood under the train, reluctantly saying goodbye to Catherine, "Are you really not going back? The Bayliss should miss you."

"No, I'm going back, we'll all be embarrassed, it's better to be like this. Merry Christmas to you!" Catherine hugged Petunia and bid farewell.After watching the train leave, he returned to the castle alone.

"Real-time Dynamic List of Travelers" A long list appeared in front of Catherine. Catherine stared at the glowing names, and murmured, "This is Ravenclaw's senior, I joined her research group... This is Lily's classmate, who seems to be interested in James... this person ...It seems to belong to Slytherin, a bitch witch? Is that interested in Severus? ...I don't remember this person at all..." Catherine looked at the earliest shining name and worried.What she didn't know was that that person was her attending doctor back then. If it wasn't for this traveler who secretly used magic to restore Catherine, she might have gone to the next world.

Then, Catherine struggled to identify the dim names, and finally found one she remembered. "Peter Pettigrew? Then I'll kill you. I have to do something to be worthy of the system."

"..." The system flowed to the sky silently.

——————————The dividing line of summer vacation ——————————

"Cathy? You're not going back?" After welcoming Catherine and Lily who came out of the platform, Petunia heard Catherine announce the surprising news, "Then where are you going? Students are not allowed to stay in Hogwarts during summer vacation .”

"So I came back by train." Catherine laughed, "Don't worry, Tuney, I made an agreement with the Bayliss family last year, and we haven't seen each other since. I'll go to Diagon Alley to see if there is any shop that hires I, just in time to earn some extra money."

Petunia pursed her lips and said in silence for a while, "At least have dinner at our house tonight and stay overnight—sleeping in the same bed with me—go tomorrow."

——————————Catherine’s fourth grade dividing line——————————

"We will proceed as planned in a while." Seeing that the new year's sorting is coming to an end, Catherine confirmed to Petunia and Lily.

"Is this really okay?" The kind-hearted Lily still couldn't bear it.

"If he has no problems, then we'll pay him a robe." Catherine said indifferently, "Tuney, you sure don't want Lily to live under threat?"

"Of course." Petunia said.Seeing that both of them approved of this plan, Lily forgot all her doubts.

When the sorting was over and everyone began to eat their big meals, Petunia stood up and stretched out her hands in the direction of James and Peter, "Hey, can you pass over your plate of honey cakes? Lily wants to eat it."

In the past, Petunia and Catherine always asked James to pass over their food under the pretext of what Lily wanted to eat. It was no big deal anyway, and everyone got used to accepting this way.

Lily seemed shy about being told and pushed Petunia. Petunia wobbled and fell, grabbing Peter's sleeve in a panic to maintain her balance. Peter stood up slightly, trying to help Petunia up.

"Ah!" It wasn't Petunia's scream, it was Lily's.

Peter didn't react, and when he came back to his senses, he saw people around him looking at his left arm in disbelief.He reached out to touch it, and the sleeve had been torn.But wizards produce, how can there be a robe that can be torn by muggles?He glanced at the smooth fracture, it was caused by a spell, but no one around cast a spell?If there was one, he would definitely take precautions, could it be... that Muggle named Petunia?

Peter came here in the second semester of his original first year. He met Petunia in his second year, a Muggle who always followed Catherine closely.Her appearance should be the influence of the time traveler Catherine. She dared not leave Catherine because a Muggle couldn't deal with wizards.So Peter included Petunia in the list of being completely safe and harmless early on, and he suffered a big loss because of this, but he didn't know if he had a chance to correct it.

"Peter, I thought you were my brother, why did you join that evil organization?" James said in disbelief.

"Since when have I been your brother! Haven't you always treated me as a follower? Leave all the thankless things to me, and pull me to violate the school rules regardless of my will!" Peter suddenly had a desire to expose everything. Impulsive, he suspected that veritaserum was added to the pumpkin juice he drank before, "Why are the Death Eaters so evil? They treat me the best, as long as I tell them your movements, he will give me big Gallon of the pen..."

"Enough." Headmaster Dumbledore stood up, and the audience fell silent, "Mr. Please follow me to the headmaster's office."

Afterwards, Catherine never saw Peter again, and the rumors about him were quickly drowned out by new rumors.But when it comes to him, everyone's evaluation is unified "betrayer", whether it is Gryffidor or Slytherin or other colleges.Until one day, when Catherine checked the list, his name was hidden. As for when he died, Catherine didn't know, and she didn't have the heart to find out.

—————————Catherine’s sixth grade dividing line——————————

"Cathy, where are you going?" Petunia asked after returning to the dormitory after the opening dinner, looking at Catherine who was about to leave.

"I'll go to Professor McGonagall and learn Animagus, you know." Catherine replied.

"Oh, yes, Cathy is in sixth grade this year." Lily said, "I'm going to prepare for the general wizard level test this year too."

"It's not difficult. Work hard. The more courses you pass, the more choices you will have in the future." Catherine gave Lily a big blow, and then left.

"Usually," said Professor McGonagall after finishing the theoretical teaching, "it will take you a while to find your Animagus form, but I don't think you need to?"

"Yes." Catherine smiled confidently.After five years of recuperation with potions, her magic power level is no different from that of young wizards of the same age, and of course, it will not increase any more.

"Then, let's try." Professor McGonagall held his wand in his hand, and stepped back to make room for Catherine.

After two days of practice, Catherine has mastered Animagus very skillfully - a cat with the same blue eyes as her.She rejected the suggestion to register with the Ministry of Magic, she was used to leaving a hole card.

Time passed quickly, and Petunia returned to the Muggle world at Christmas, and said she would not return next year.She is studying matriculation, going to a regular university, and looking for a different job, that's her plan.

The Ordinary Wizarding Classes were coming up soon, and both Severus and Lily had done well. James was originally a playful child, and he heard that he has recently talked about a relationship, so his grades may not be very satisfactory.

Based on Petunia's and Catherine's trust in Severus, and the fact that Severus' hidden edge was not noticed by the Death Eaters too early, Lily and Severus did not have any conflicts.Under the education of Catherine and James' girlfriend, James did not go out of his way to trouble Severus, and there was no incident of [exposing flowery underpants].Of course, compared to Severus who had little savings, he was no longer wearing flowery underpants.

The author has something to say: Hey, everyone should keep up with the jump of time

It was only after I finished writing that I remembered that Dumbledore doesn't seem to be the headmaster at this time... Don't pay attention to these details