Bought it from AXA and did it online. It was quick and easy. Thanks for the recommendation!

I think Malaysian can't stay more than 90 days without a visa.

If you really want to stay with a visa, you can get student visa.
You can apply for D-4 pass if you enroll to Korean language class in Korea.
There is evening class if you can't go to class in the morning or afternoon.
If you don't want to spend money and time on going for Korean class, the best way is to fly in and out every 90 days.

As for Alien Registration Card, it is like the IC for foreigners, I think you need to have a visa or authorization letter to apply for it. Doesn't make sense for Korea to issue ARC to anyone who wants to stay there longer without visa.

Better check with the company who sponsor you for the program and Korea embassy in Malaysia.
I believe they should have thought about the visa problem before offering the program to foreigners who don't have visa.

If you go there for 5 days, there is one event that you can get free Samsung Note 5 with 1GB data everyday.
Link --> http://emk.visitkorea.or.kr/about

But now you can also get free EG simcard with 2,000won credit in it.
Link --> http://egsimcard.co.kr/eng/news-event/even...um=104508&pno=1

You can reload based on how much data you want to use.
(if you reload 500MB and above you get to use free Olleh wifi too)

5GB 44,000krw
3GB 33,000krw
2GB 22,000krw
1GB 16,500krw
500MB 11,000krw
100MB 5,500krw

If you use a lot of data, the best is to get wifi egg with unlimited data

This post has been edited by eugene9201: Jun 4 2016, 08:23 AM

Depends on where you are planning to go. If you are mainly travelling in tourist district, there will be someone who can speak English or Chinese, and signs often will be in English/Chinese/Japanese too. Worse comes to worst, you can always use body language and online translator (I recommend Naver Translator). No worries, you will survive