An odd transfer student (Saiki x Mexican male reader)

Nom nom

As we sat down I had pulled out the lunch my mom had made for me. Apparently my mom felt nice so she added a small note

"Just eat it all and have a good day pequeño"

'Why does ma always call me that? It only means small, it's probably because I'm the youngest brother'

"What do you guys have for lunch?" Nendou asked

"Well my mom packed me una torta so-"

"What's that?"

"It's just a sandwich but with- actually I'm not sure all I know my mom makes it for me and it's my favorite"
I look down at the rest of my lunch
'Wow mom was extra nice though she knows I'm not too into Coffee jelly'

I saw the pink haired boy eying my coffee jelly.

"Um you can have it if you want." I handed over the sweet to him.

"Thank you I'm Kusuo Saiki by the way"
'That's a nice name'
"I'm Y/n Río but you already knew that"

A random blue haired girl kept bouncing around me trying to get my attention.
'Oh wow it's sonic'
After realizing what I had thought I slapped my hand on my mouth. People looked at me like I was crazy. My face turned a little red.

I saw that Saiki had laughed a little and that kinda made me feel less awkward.

"Hello my name is Kokomi Teruhashi!"
"Um hello my name is Y/n Río"

Ahaha switching to Saiki's pov-

There's something off about Río everyone knows just by looking at him that he's a foreigner. Not only that but I can't see through him so he just looks like a normal person and not just bones.He also thinks in a language I can't understand, yare yare that just means he's another Nendou. But Nendou doesn't give me his coffee jelly so that's a plus.

I spot him talking to Teruhashi but he looks so tired,

'Please leave me alone you speak like my abula with dementia'

I'm guessing Abula means Grandma, I'll just ask him about that later.

What a hassle.

"Hey Y/n"I "said" as I tapped his shoulder.
"Sup Saiki,"
'How is he already comfortable? Wasn't he stressing about fitting in earlier?'

"Where are you from I was just wondering?"
"Well I'm from America, my mom is Mexican while my dad is half Japanese and Mexican"
'I SHOULD'VE TOLD EVERYONE NOW THEY'RE ALL GOING TO ASK ME AND THEN I'LL HAVE TO TALK TO PEOPLE AAAAAAAAAA-'

'Well I didn't expect him to react like that he's also smiling which makes this weirder'

But something about Río is intriguing I feel like getting to know him more.

I sigh. 'It's not he's any harm'
Might as well get to know the guy and try to figure out why he's off.