The correct way to word an invitation is to say, "We request your kind presence at." The invitation does not need to say kind presence to be correct.
contest
It is my kind and humble request
An adults only contest.
You don't mention what kind of 'request'.
Heptathlon
what kind of request first of all
An Essay Contest is properly defined as a written kind of contest. Writers can truly show off their skilled writing talents in these kinds of contests, it is like a spelling bee, but you are writing instead of just spelling, and the essays would be graded in the end to find out which is the best.
tested con powers
What kind of presence? There are no such thing as ghosts peoples!
If you go to the contest hall in Hearthome city, you can enter any kind of contest. They have contests for beginners and masters. They also have categories ranging from Cool, smartness, beauty, toughness, and cuteness.
infinitive
This is correct