{Izuku P.O.V.}
I swam out of my cave slowly and chased down the last two fish sitting and eating them quietly to myself. Human's have a weird language - it's different from mine but I can kind of understand it... I wasn't taught that must on it since I was so little when I came here and I don't like getting too close to the surface as I'm afraid I'll get pulled out of the water again.
I heard something fall into the water and looked around... It isn't feeding time again? I looked up swimming closer to the object that was sinking. As I got closer I noticed it was that boy with spikey hair. I held him in my arms and looked around, why is he in here?
I sniffed him and licked his neck then looked at him - is he unconscious? I placed my head on his chest and closed my eyes... he's so warm. I smiled gently then remembered that land-dwellers can't breathe underwater. I can swim up but I don't know how fast he can withstand. I looked around holding him in my arms and looking at the glass wall. I swam over to it and hit the glass wincing as it echoed dully in my ears. I tried to call out but knew they wouldn't understand me.
I looked back at the boy his heartbeat slowing and I gulped sniffing him again... He's my fated mate so... this is okay... But he won't know... He won't know I'm bonding myself to him. But he won't be bonded to me so it's okay! I placed a hand on the back of his head, closing my eyes and chanting one of the spells that I remembered and then kissed him, putting the spell on him.
He hummed and one of his eyes opened. I help his face and tried to call out to him.
"Are you okay? Can you breathe now? Hello?" He stared at me and I gulped looking around.
"Hello?" He seems very dazed...
I grabbed him in my arms and swam up slowly so I didn't hurt him. As I neared the surface I stopped and pointed to it.
"Go," I said trying to let him go - but as soon as my grip even slightly weakened he began to sink again.
I gulped and held him tightly popping my head out of the surface and crawling onto the edge of the tank to drag him up. I laid him down and laid my chest on his as I hovered over him waiting for him to wake up. I stared at him confused as he didn't move and I swung my tail up slapping him across the face and he sat up throwing me off him to the side and further onto land.
I panicked and began to wriggle about trying to get back to the water when more people came out and ran to him checking him over - two grabbing me and picking me up I panicked and fit them with my tail and two people who were with the boy turned to me and grabbed my arms the two from before holding my tail.
"Help me!"I cried trying to get free. They put me into a smaller tank and placed something on top. I tried to get out but the see-through thing they had placed on top meant I couldn't! "What's going on! Help!"
{Katsuki P.O.V.}
I groaned as I was sat in class like usual bored out of my mind. Aizawa asleep in his yellow caterpillar looking sleeping bag and Iida trying to control the class. I sighed as I felt my phone going off. I took it out and it was a message from the old hag.
'Just this once I need you to leave school and come to my work. I need your help - we're relocating him today to somewhere safer - I'll explain when you get here.'
I stared at the message confused and sighed packing my things away and standing up.
"Bakugo, sit back down," Iida instructed.
"How about, fuck off? My mum's picking me up." I left the class and he yelled after me. I growled tutting and walked off school grounds heading to mums office.
