This is for zero guardian's challenge on making the kawaii-est wallpaper.
In the series the quote is after The 'beautiful' Suzuka introduces himself in the semi-finals and Koenma says "I like how this cracked walnut thinks! From now on you are to address me as 'pretty' Koenma, I think 'pretty' brings out the sparkles in my eyes!" :3 love that scene! And isn't he so cute like that?