Mokalaynekuryu
Vexus Serian is a teacher in his high school. He teaches Computer Science. His age is unknown and background even more mysterious. Not even Vexus himself knows where he's from, nor remembers his childhood. For all he knows he's been an adult teaching at this school all his life. Of course this cannot be true, right?
One day a man he's never met, or so he thinks, arrives at his doorstep. He seemed awfully familiar. Acting as though they grew up together and known each other all these years. Just to humor him and find out more about why this man claims to know him, Vexus invites him in for a cup of tea. Not to mention Vexus wasn't about to pass up an opportunity to possibly learn about his blank past.
What he learns was completely unexpected and far from anything he'd ever imagined.