Its not a martial art its a training drill.
Close combate
No, kung fu is a specific style of a martial art.
Martial arts is the study of warfare and the way of combat. Using a weapon is a martial art. The Marine Corps specifically includes the use of guns and knives in their fighting style.
You don't choose the style, the style chooses you.
The cast of Romantic Style - 2002 includes: Mio Sakura
Kemp is not the name of a martial art. You are probably referring to Kempo, a style of martial art found in Korea and Japan.
It is a style of Japanese swordsmanship.
A style of martial arts
I believe it is based on nin-jutsu although there are a few hints of tae-kwon-do and karate
Harry Styles does not do martial arts, but does practice a military-style fitness regime.
Don't get sucked into the style wars. Study the martial arts for your own reasons, not for what others think. You need to find the teacher and style that works for you, which is not necessarily the one for your neighbor or your friend.