It's a good time for it!

"So, what's the plan for tomorrow?" Setsuna asked curiously as she stood, the other four girls kneeling on either side of her.

Izuku stood in front of all five of them, and smiled at them. "Let's meet up at Momo's, and we can work out the plan for meeting in dreams in the future like you suggested. I also have something to tell you, Tooru and Tsuyu. A few secrets I have been keeping," he admitted.

"...so, why didn't you tell us sooner?" Tooru inquired, blinking slowly.

"Well, I don't like repeating myself too often, so I figured three at a time was a good enough number," Izuku replied.

"...can't argue with that logic, ribbit," Tsuyu nodded. "I know I can make it tomorrow. My parents are off work, they can watch my siblings." With that, they all began to fade from the dreamscape, to return to more normal dreams, and ultimately wake up in the morning.

...

Tsuyu woke up the next morning, blinking as she stared at the ceiling, before smiling. She grabbed her phone with her tongue, and pulled it to herself. "What time are we meeting at Momo's?" she texted Izuku, using a fairly safe question. While she was quite sure the dream was for real, she wanted to make sure that on the off chance it wasn't, she didn't sound too crazy. If Izuku denied a meeting at Momo's, she could play it off as early morning confusion. If he confirmed the meeting arranged in a dream, that would seal the deal.

He sent a text right back. "Its Saturday, so we have Study Group today, so right after," he replied. She nodded, grinning, that slight doubt obliterated. She got up and started getting ready for today's study date.