Heroes Of Justice! (Tenko x Rantaro Fanfiction)

Tenko couldn't help but notice him. He had been staring out the window of the classroom for a long while now, and the bell had rang ten minutes ago. Most people had left the classroom in a hurry, seeing as it was finally summer vacation, so only her, Himiko, and a couple stragglers were still loitering in the classroom. But this degenerate seemed to be lost in thought, and just was staring blankly out the window. His green eyes looked.. distressed, and tired. Even though he was a degenerate male, she couldn't help but worry about him. She had an unusually good perception of others feelings, and she was usually right when she thought that someone was in emotional distress. She was a disciple of Neo-Aikido, she was a defender of justice and protector of the weak! So it was only natural that she was worried for someone who seemed to be in trouble, right? She nervously walked up to the boy, hoping that her intuition wasn't wrong this time.
"H-hey, Rantaro? You seem a bit off. Are you alright?"
He was silent for a few seconds, before turning to face Tenko.
"Nah, I'm fine. You must have been imagining things. I'm just a little excited for summer, that's all."
He tried to give her smile. She realized something, something when she saw that smile. This boy.. he was hiding. He was hiding his emotions under a smile, a smile that was a wall. She didn't notice it before, and she hadn't talked to him much in class. I want to know him better, she thought suddenly, then blushed, surprised. H-he's a person in need of help! I can't just leave him here! That's it, she tried to reason with herself. She wanted to help him, help him break down his walls, and help him be able to show his emotions.
"H-Hey, Rantaro?"
"What is it?"
"If you aren't doing anything after this, do you want to hang out?"

Note: So, this will be a non-despair AU fanfiction! It will probably be slow-burn romance, and will contain spoilers for Rantaro's talent in V3, so watch out for that!