I see, so it's a similiar mark like  "々".
If this mark "々", I often see it. Haha

I've searched on the internet with くの字点 as the keyword and I find a lot of article about it.
Thank you again :)

It's okey Aficionado. We are discussing here and you do help me too. Thank you :)

About read that japanese text, yeah it's really difficult but I do that in a common way.

Just with Ms. word to help me find the "furigana" of kanji that I can't read and a dictionary.
And actually I already have N3 certificate of JLPT. I'm sorry for not updating my profile. :)

Saya pikir Indonesia bisa jadi negara yang maju, tapi sekarang masih banyak hal-hal yang harus diperbaiki dan dikembangkan karena akhir- akhir ini terjadi begitu banyak hal yang mengecewakan.

Oh, I got it.

So It's something that called a ditto mark. Are there a lot of ditto mark in Japanese?
This is the first time I saw a mark like that and it make me confused. 

But, thank you so much, Yukie. You really help me :) :)

how about Shawn Mendes?! He is not a rapper anyway, but his song is easy listening.

I see. So, may be that just some kind of typo, right?!
Thank you :)