Izuku gets a little bit petty.

As he woke up in his own bed with Ochaco and Momo on either side of him, Izuku smiled sleepily, before sitting up. "...hey Momo," he then said, his grin a bit mischievous.

"Mmmnh?" Momo asked, lifting her head, her hair in a classic bedhead configuration, her eyes lidded. "Yes, Master?" she yawned.

"You remember when we first met Setsuna, and that prank she pulled when I shook her hand?"

"...yeah? What about it?" she inquired as she sat up, rubbing sleep out of her eyes.

"I'm thinking a small amount of harmless payback is in order," he grinned.

"...Master... Did you just hold a grudge?" Momo asked with an amused smirk.

"Meh, more of a small one..." Izuku waved it off. "I'm thinking we pretend last night really was a dream for her for a while and just play dumb if she mentions it."

"...oh, that's petty, Master," Momo grinned. "I like it!"

"Like what?" Ochaco mumbled as she also woke up.

After catching up Ochaco on the planned joke, she was in, and immediately helped Izuku and Momo text everyone else to not give anything about the dream away.