Please enjoy the next chapter.

Eri, in one of Kitsumi's shirts, sat at the table as she slowly ate, occasionally looking back as she did. The class of 1-A looked at her before looking back at Izuku and Kitsumi spoke, "So because she was being used as a test subject, you went through a Wicked Phase?" Izuku growled in annoyance as he slowly nodded, "And you said the woman's name was Overhaul?"

"Overhaul," Shoka hummed as she crossed her arms, "I remember my stupid mother saying something about a villain with that name, but there wasn't much about her to make an arrest,"

"What's going on in here?" they all looked up to see Shika entering the common room. The homeroom teacher looked at Eri, who shook with fear at the tired-looking woman before Shika sighed and looked at her students, "So can any of you explain to me why there's a little girl in the kitchen an-"

"If you even think about sending her away, I won't hesitate to rip your spine out!" everyone gasped as they looked at Izuku as he glared at the teacher, "Eri has been through hell an-"

"And no one is going to send her away, Izuku," Kitsumi assured before looking at Shika and inhaled slowly, "Sorry about him, Ms. Aizawa, he's going through a Wicked Phase because a villain named Overhaul was doing experiments on Eri and he got annoyed to the point where he-" before the hotheaded blonde could finish, Shika wrapped her scarf around Izuku and began pulling him out of the room, "Hey!" the students watched as their teacher dragged Izuku out of the room before closing the door behind them.

Everyone turned their attention towards Eri and Momo walked over to her and patted the top of her head as she smiled, "Don't worry, Eri, Midoriya will be back before you know it. The teachers just wanted to talk to him," Eri moaned and pouted before she turned and continued to quietly eat the food in front of her.

TOWAQ

Izuku stood in the principal's office with the teachers and a few heroes staring at him. The adults looked at Izuku before the principal spoke, "Now Midoriya, please tell us again how you came across that little girl in 1-A's common room,"

Izuku sighed as he shook his head, "I sent Lily, my Pyrofly, after I saw her being pulled down the street by a woman and something felt off. Later, Lily returned to me and told me what they were doing to the kid, so I asked Kit and Todoroki to head back to the common room and I flew off and met with this villain named Overhaul, ordered Vivo to crush her hands and took Eri and brought her back here,"

Nemuri hummed as she crossed her arms, "And the darkness in your eyes?"

"Wicked Phase," the adults looked at him, "Since my Quirk is Demon Lord, I'm basically a demon and demons go through what's known as a Wicked Phase, it's when they get so agitated that they won't hesitate to kill and after hearing that this Overhaul was treating Eri like a test subject, something in me snapped and now I'm stuck like this for a few days,"

"Well...until you are out of this stage, you are excused from classes," the principal spoke and Izuku looked at her, "Since you explained to us what happens when you're like this, I feel it'll be safer if you were to stay out of class until this runs out of your system," Izuku sighed and nodded as everyone stood up and got ready to walk out of the room.

Izuku was about to follow when he felt a hand on his shoulder. He looked back in annoyance to see a woman with fire covering her face standing behind him, "Flames...I take it you're Endeavor, am I right?"

"You know your heroes, boy, good, but that's not why I stopped you," Izuku narrowed his eyes and growled under his breath as the woman continued, "No, you see, I thought you were just a story, a rumor, a legend, but seeing you here...I got a proposal for you,"

"Not interested,"

"Now, don't act too hastily," she crossed her arms, "I want you to marry my Shoka. With her Quirk and your Quirk, your children will be unstoppable an-" before she could finish, her eyes widened as she doubled over in pain.

Looking up, she saw Izuku standing over her with a hardened expression crossing his face, "One, never approach me when I'm like this, especially with something as asinine as that, two, I'm not marrying anyone who made me feel unwelcomed like your daughter and many others have done, the next time you try something like this, I'll summon my Kelpy Miku to tear you apart," Izuku turned and walked out of the room in a huff as the woman slowly stood up and grunted in slight pain.

She looked up and rubbed her stomach as the door closed and she narrowed her eyes, "I can tell he's going to be a challenge, but with the power of hell along with Shoka's fire and ice, the next generation will be unstoppable," she coughed slightly before walking out of the office, closing the door behind her.

TOWAQ

Izuku entered the common room and Eri jumped up and ran over to him before hugging his leg. Izuku hummed as she patted the top of her head and Kyoka spoke, "So what happened?"

"They asked about Eri, the villain who held her captive and I got a few days off until I get out of my Wicked Phase...and Todoroki, keep your mother away from me," Shoka hummed in confusion and arched a brow, "She wanted me to marry you so our children might inherit the Demon Lord Quirk...I warned her not to even think about proposing an asinine idea like that again, especially when I'm like this,"

Kitsumi stared at the bicolor teen with narrowed eyes as Shoka sighed and shook her head, "That stupid woman. Why would she try to pull this crap?"

Eri clapped her hands and everyone looked down at her in confusion, "Crap," everyone looked at Shoka and Izuku narrowed his eyes as Shoka sighed and held her hands up in defeat.

Yeah, Endeavor will still be an ass for the most part, this is something that Endeavor will do, even in canon. Please enjoy.