Issei Ryudo is a character from Fate/stay night.

A year ago (sometime near the end of Unlimited Blade Works route), he discovered DDD, and stayed mainly to keep an eye on Rin.

His hobbies include blushing and flailing.  Like so!

He is very close friends with Archer, in addition to crushing madly on him.  (He also saved him from his horrible fate as a Counter Guardian.  Which is probably the only time Issei's done anything really important.)  He's also good friends with Ban Midou and Hakuba.  He's currently attempting to date Haruto.

Akako will never get anywhere with him, no matter what she says.  Not a chance.