Nedzu was to attend a meeting with all the principals of the hero school in Japan in less than a day.

Normally, he would just go to the meeting without a second thought, but since he had Izuku to take care of all his normal plans and schedules had gone out the window to care for his little mouse. Which was fitting because he dressed Izuku in a white mouse onesie with pink socks today. He loved the fact he could dress up his son in any onesie he wanted to. Maybe he would choose a small tuxedo next time so they could have matching formal wear.

Nedzu had embraced the crawling stage by giving him that onesie. And now after some time, Izuku had let up on his crawling adventures to just crawl over to his toys.

The issue was that Izuku has started teething recently. When he says recently, he means that morning, which means that he has to be gone for a few days when Izuku's teething stage has just begun.

Which means he had to get a nanny or four for a few days until he came back. He was sure he could bend the rules a little bit, as long as the four nannies did their schoolwork while they were away from school. Nedzu needed to remind himself to buy some futons, so they didn't sleep on the floor again.

Izuku babbled from his floor crib with a cold teething toy in his mouth.

Nedzu smiled down at him, "Hello little mouse, papa is going to have to go away soon, but don't worry. Your nannies will take good care of you, especially since I'm in charge of whether they get expelled or not." Izuku giggled.

"Yes, yes. Now, it's time to make a list for them to follow to heart this time, and a grocery list to make sure they don't raid my special snacks."

"I can't believe Nedzu is letting us out of school for a few days just to take care of Izuku!" Hizashi yelled at his friends, pumped at the chance. Small bags of clothes and schoolwork adorned his arms as well as his classmates'.

"Seriously? Don't you remember the last time? You know, when we lost Izuku?" Aizawa deadpanned as he walked with his friends to Nedzu's room.

"Lighten up! We found him in the end anyway, didn't we? What's the worst that could happen now?" Nemuri said as she bumped her arm playfully against Aizawa.

"Anything worse can happen now." Aizawa grumbled.

The three nannies walked to the room with conflicting thoughts in their head. Tensei couldn't make it since he had to take care of Tenya, but he promised to help them with homework and any baby tips as long as they sent him cute pictures of Izuku with Nedzu's permission. The trio's parents agreed to the three day weekend babysitting sleepover since they knew it would teach them responsibility from taking care of a baby and they were still going to do their homework.

Nedzu came through the door when they were still a few feet from it. His face was less tired, but more sad than last time the teens watched over Izuku. He held his son close, "See you soon, my little mouse. I'll be back before you know it." Izuku babbled in his little mouse onesie. Nedzu handed Izuku to Aizawa carefully. "Everything you need should be in there. I have twenty dollars a day for your food budget; anything else will be out of your pocket. There is an updated list on the fridge. I went ahead and purchased some food, just in case."

Nedzu waved goodbye to his students, "Just so three know, he has begun his teething stage, so have fun!" He ended with a more sadistic smile.

As Nedzu walked off, Aizawa thought to himself, 'Son of butternut squash, not again.'

Everything was going smoothly...

Was what a crazy person would say.

After Nedzu had left, Aizawa and Hizashi read the list of things to do out loud as Nemuri kept Izuku in her arms in the living room. They skimmed through the normal routine before heading to the bottom.

'P.S. Izuku is very picky when teething. I found out this morning when trying to figure out what he wanted to be his teething toy. I tried multiple methods before landing on his cold toy. He specifically only likes certain things to chew on, this being one of the three. He will drool and get grumpy, be prepared students.'

"Okay, so as long as we have the teething toy, we will be fine, right?" Hizashi said before looking down at Izuku chewing on his fist. "Where the hell is the teething toy?"

Aizawa flipped the page over.

'P.P.S. When I was writing this list, I noticed Izuku no longer had his toy. I haven't a clue where it is, but you three will be showing at the door any minute, so no time for a backup plan. Thank goodness. I have all the other methods present in the kitchen. Knock yourselves out.'

Aizawa grumbled and ran his hands over his face.

Nemuri went to ask what was wrong, and the three days of hell started when Izuku opened his mouth in a weak wail.

First Method: Chilled Spoon

"Hizashi, What the hell?!" Aizawa asked, yelling at the blond, who held the cold spoon in his hands like a stabbing tool.
"I put the spoon in the freezer, was I not supposed to?!" Hizashi yelled back at his friend, both parties trying to hear each other over the wails of the infant that was being held by Nemuri.

Nemuri whisper-yelled at him, "You were supposed to put it in the fridge, and you weren't supposed to put it in wet!"

"Why not?" Hisashi asked, panic and frustration rising.

Aizawa raised an eyebrow before holding up a cold stainless steel spoon covered in ice that gets jagged in some spots, "Gee, I don't know."

First Method: Chilled Spoon- Failed

Second Method: Fingers

"Ow, ow, ow, ow," Hizashi whimpered while his newly cleaned fingers were getting chewed on.

"Hey Hizashi, can you feel his little teeth?" Nemuri asked, hoping this would work.

"Oh...I feel it. And I don't like it," Hizashi replied, grimacing.

Izuku started to get irritated with the finger in his mouth, so Izuku grabbed Hizashi's finger and removed it, frowning and whimpering softly.

Second Method: Finger- Failed

Third Method: Teething Gel

It was after dinner, and the three had already finished up their homework for that day. They even did tomorrow's ahead of time since they had some quiet time at last.

"I can't believe Aizawa found the answer," Nemuri grumbled as she looked at the peacefully slumbering Izuku laying on top of a napping Aizawa on his futon.

Hizashi placed a blanket over the two before climbing into his own futon. Turns out, the teething gel really helped Izuku calm down, especially since Aizawa rubbed his gums afterward.

Nemuri glanced at her phone. The digital clock read 9:30. It took 4 hours for Izuku to fully stop crying. And this was just the first day. Hopefully, the gel would work again tomorrow

Third Method: Teething Gel- Success

Fourth Method: Freezing a Washcloth

Apparently, the teething gel only worked when Izuku was tired. As soon as Aizawa went to place it on his gums in the morning, Izuku threw the squeeze container on the ground. Not wanting to fight, the others turned to alternatives.
Nemuri froze one of the washcloths in the fridge and one in the freezer. Both of them were dry.

It seemed to work until lunch when Izuku threw the washcloth at Nemuri's face when he was done chewing on it. They tried the backup from the freezer, but it was too hard for Izuku.

Fourth Method: Freeze a Washcloth-Failed

Fifth Method: Peeled Ginger Root

This time, they called in the favor of Tensei who sneaked his phone into class.

Tensei texted them that Tenya seemed to like peeled ginger roots to help with his teething problems. So they tried that, Nedzu had a few peeled ginger roots in his cabinet. Hizashi guessed that it must be because he tried one of these methods before, and he prayed to whatever god was close enough that this was one he liked.

Nope. Izuku threw the ginger root away as soon as Hizashi placed it in Izuku's mouth. Hizashi's hope was crushed as he watched the ginger root fall to the floor.

Fifth Method: Ginger Root-Failed

Sixth Method: Bath & Face Massage

It was late and close to Izuku's bedtime. Izuku was still trying to teeth by chewing on his onesie while the three of them kept a close eye on him while they ate pizza again for dinner. Aizawa was the first to finish and brought Izuku to the bathroom to get him cleaned up for bed.

Aizawa succeeded in getting Izuku in a good mood by making bubbles while he bathed him. When he was dressed for bedtime, he gently massaged Izuku's little cheeks like his mother used to do for him when he was young.

Izuku was smiling at him while slowly going to sleep. Aizawa placed a small amount of the teething gel on his gums before laying him down in his crib.

Before long, Izuku was out cold.

Sixth Method: Bath and Face Massage Success

Aizawa: 2
Hizashi: 0
Nemuri: 0

Seventh Method: Vanilla Extract

Bath time, however, was just a short fix. And when Aizawa tried to rub on his little baby cheeks again Izuku got grumpy. He sighed and wiped the drool from Izuku's mouth using a tissue.

Nemuri tried a trick that her mother did to her when she was little. She found some vanilla extract and put it on a cotton swab.
"Say ahh, Izuku!" Nemuri said cheerfully. Izuku looked at the short white wand strangely, opening his mouth slowly.

She coated his gums with the extract before pulling back. Izuku seemed to taste the overwhelming vanilla but otherwise stayed calm.

Yay! She finally got a point.

But after lunch, he got grumpy again. The vanilla didn't work a second time since Izuku wouldn't allow the cotton swab near his mouth without causing a fuss.

Seventh Method: Vanilla Extract-Failed

Eighth Method: Cucumber Slices

Hizashi thought of a brilliant plan when he was making a sandwich. He pulled out a piece of cucumber for Izuku to chew. Izuku was quite happy with the cool green slice for a while...

Before he started to wail again. Nemuri and Hizashi sighed, resting their heads in their hands while Aizawa picked up Izuku. Aizawa bounced the child lightly, trying to soothe him.

Eighth Method: Cucumber Slices- Failed

Aizawa was bouncing Izuku in his arms as he walked back and forth in his room. He rubbed Izuku's back and hushed him softly. Izuku's cries weren't as loud as before, but he was still worried. He wiped the drool away from Izuku's mouth again, but then he noticed something on Izuku's dresser.

Something that looked like a teething toy... 'Son of a butternutter.'

Ninth Method: Teething Toy- Successful

Nedzu walked in to see Aizawa on the couch holding a fed, dressed, diaper changed, and happy baby bouncing on his leg. Izuku had his spare teething toy in his mouth. Nedzu wondered how long it took them to find it, but seeing their tired faces he could only imagine it was pretty recently.

Nemuri and Hizashi said goodbye before they left, very tired. Aizawa stayed behind a few minutes to give Nedzu an update on the methods they tried out and how Izuku has been over the past few days.

Izuku clung to his father while chewing on his giraffe teething toy. He wore a mint green and white striped onesie with a bunny tail on his butt. Aizawa smiled, seeing Izuku so at ease before taking his leave as well. It might have been a hard few days, but Izuku was worth it.

Nedzu turned to his son once all the teens were gone for the night. He smiled softly at his son's already drooping eyes. He carried him gently to his room and laid him down in his rocking cradle. He slowly rocked him as he hummed a song that they saw in one of those Disney movies Izuku loves so much. Izuku fell asleep slowly with the embrace of his father's warm presence and calm voice.