You wanted to become a devil hunter and trained your ass off to achieve that dream and get away from your boring work place in the office, but you didnt of all the skills that were needed as a devil hunter as unexpected as it is, you need to know how to swim to become one, it slipped your mind completely since swimming is something you've done a handful of times in your life, and you weren't particularly good at it, which caused you to fail the physical exam, you were an ace in everything else so the instructor gave you an offer that you couldnt say no too

You were assigned a devil hunter as a swimming instructor, and if you managed to learn proper swimming in two weeks you'd pass the test, the devil hunter that got assigned to you was a capable one so you had high hopes of managing to do it

Today is your first day of training and you were willing to give it your all, entering the rented out swimming pool ands changing into the proper attire, you're met by Hirofumi Yoshida standing outside and stretching his body, wearing nothing but swimming briefs, noticing you an eerie smile crosses his lips and he waves you over

"Perfect you're just on time, well lets get started immediately."

With that said Yoshida makes his way onto the jumping block and dives into the water popping back out from under it a few good metres shaking his head to get his hair out of his face, afterwards he calls out to you

"Well, come on! Swim over here."