Angelic Layer:
AL began as a manga by CLAMP, the female foursome that brought the world Chobits, Card Captor Sakura, X/1999, Wish, Magic Knights Rayearth, and Clover.

Icchan-san:
His full name is Mihara Ichirou, but when he first meets Misaki he tells her to call him Icchan, the -chan being a traditional Japanese suffix for the names of people you're familiar with. Misaki, being ever polite (and a little naive) dubs him Icchan-san, adding the more formal suffix of -san. If you're here, you likely know Icchan, so I'll resist telling you more for sake of spoilers. Here's a few tidbits:
Age:
Status: Shyly Smitten
Occupation: It's a Secret!
Hobby: Helping Misaki, Teasing his assistant

The Wrong Answer Game:
This has been translated several ways, but "wrong answer game" is my favorite. Icchan is constantly torturing his assistant by punishing him if he doesn't complete tasks on time. Wrong answer games have included live squid in the pants, eating noodles without making noise, and being covered in closepins.

Fanlistings:
Fanlistings are very simple, it's just a big ole list of people who love something, in this case Icchan! Basically you fill out the form, and then I list you on the members page. And you get a spiffy graphic to add to your webpage. Fanlistings are all collected at The Fanlistings, who keeps track of them all (which is quite an undertaking).