They wake up. Duh

Izuku's alarm woke both of them up early in the morning. "Urg..." Ochako said grabbing her head. "This is normal for you, right?"

"Yeah." He said sheepishly. "But most nights aren't like last night."

"You saying something about me?" Ochako said jokingly.

"Yeah." He gave her a quick kiss. "You're extraordinary." Ochako hugged him, and the two got dressed. Izuku expanded Ochako's last entry to include all of U.A., and that if anyone at U.A. gets curious where she was, they'll accept whatever response Ochako and Izuku give them.

"Hey, Deku?" A fully clothed Ochako walked right next to him and started to blush. "So... are we... dating now?"

Izuku's eyes shot wide open, as that thought hadn't actually crossed his mind. "Uh... Well... I think so?" He started to rub the back of his head, before getting struck by an idea. "Well, you want to start?"

"Well... yeah. Yeah!" Ochako then paused for a second. "But, maybe we should keep it secret for now?"

"Yeah, that sounds smart."

Their day was surprisingly normal afterward, as their precautions with the Sex Note basically meant that no one had noticed anything wrong with their absence, and Ochako just has to tell Mina she was talking to her parents last night for the matter to never get brought up again. They also learned that apparently not wanting to screw over themselves socially was something the Sex Note considered to be fairly important, so keeping their cool despite remembering what happened proved to be very useful.

The only thing about the day they hated was lying to Iida. He bought the story of Ochako talking with her parents and didn't press Izuku at all, but they ended up sharing some somber text messages that night about not wanting Iida to become the third wheel.

"I know" Izuku texted. "Maybe we should leave the dating thing alone for a bit?"

"I think Iida's the first person we tell. We can trust him." Ochako sent back. Thinking about it, she's probably right; he's not one for gossip, and there are no rules at U.A. against dating - this is strictly a matter of not wanting to be teased, with the bigger detail of not wanting the Sex Note to be known. "About us dating, by the way," Ochako texted back. "Not the Sex Note."

That actually gave Izuku a much-needed chuckle as he texted back "Agreed. I say we wait a week, make sure we can handle it, and that there are no side effects to the Note. Then we tell Iida, and we'll let everyone know later."

He pondered on that before responding. "Sounds like as good of a plan as we're going to get."