You've been working at Cupid Corp for a long while - you're a bit of an expert matchmaker by this point, which is why it's natural to give you some difficult cases. Even if you were a rookie to begin with, you've risen up the ranks steadily and carefully, making matches and forming true pairs to last a lifetime...which has led you to this difficult case. If you get this set of boys paired off with someone to get married, you'll most certainly get a promotion.
The problem, of course, is that all of them are some degree of eccentric. And you've had a particularly difficult time with this one.
Staring at you across the table in the interview room is a man who looks almost all too prepared - he looks like he's going for a job interview and he really wants to get the job. Seeing you enter, he perks up. "Ah! I salute~ a pleasure to meet you! Saegusa Ibara! I trust you've gotten the sheet back I was told to fill out." He beamed, saluting off the top of his head. The sheet he turned in is very professional and to-the-point, not saying particularly great things - he works a lot, so he'd hardly have time for a partner, but he'll seems liable to say whatever a partner would want just to try to get his way.
This has made his 'Two-Faced Parasite' nickname very apt.
"Have you already gotten any ideas for any matches? I'm here to give my input!"