Oppafangirl recommended this one because it was referenced in Children of Nobody.

A long time ago, a brother and sister lived with their mom. One day, the mom went to do ??? ‘Kids, mom is going to meet and buy ??? so look after the house well.’ ‘Yes.’ Mom finished and was coming home when suddenly she met a tiger. (No clue what the tiger said.) Mom quickly gave ??? to the tiger. The tiger ate ??? and even ate mother. (I’m missing a few words but I think that’s the general idea). The tiger put on mom’s clothes and said ‘Let’s go to the house where the siblings are’. ‘Kids, mom is back.’ ??? Mom’s voice sounded strange. They looked through the door (?) but what was a tiger doing wearing mom’s clothes? (I’m missing more words) ‘Quickly, ??? let’s hide up above in the tree.’ The kids ??? The tiger ??? The tiger saw their ? faces in the well. ‘Kids, how did you get in there?’ The kids laughed. On that breeze, a leaf ??? ‘So, you climbed the tree!’ The tiger tried to climb the tree but it wasn’t easy. ??? It’s easy. Because of what he said, the tiger applied ??? and said ‘Let’s go up.’ But he slid down. Boom. He slid down again. Boom.

‘Aigoo!’ ‘If he ??? he can come up,’ the younger sibling said accidentally while laughing. The tiger found the axe (I only got that it was an axe from the video. I didn’t know the word for axe). While ??? he climbed up. The siblings were scared. They closed their eyes and ??? God, please lower ??? From the sky, ??? came down. The siblings rode the rope and went up into the sky. The tiger too ??? But this time, ??? The tiger was going up ??? He fell to earth. Like this, the dongsaeng who went up into the sky became the sun and the oppa became the moon.

예날에 엄마와 오누이가 살았어요. 하루는 엄마가 창치집니를 하러 가게 되었어요. 얘들아. 엄마가 창치집가서 사월테니 집 잘 보고 있어라. 네. 일을 마친 엄마가 더끌리고 집에 가는데. 갑자기 호랑이 한 마리 나타났어요. 더 큰아즈면 안즈마므치. 엄마는 얼른 더끌코네 호랑이에게 주웠어요. 호랑이는 더끌 라른 받어먹고는 엄마까지 잡아먹었어요. 그렇구는 엄마 옷을 입고 오누이가 있는 집에 찾아가 말했어요. 얘들아! 엄마 왔다!

톤헷 잠기마를 발라고 올라가면 쉽지. 그 말해서 큰 호랑이가 잠기를 발라고 올라가자. 자꾸만 미끄런 품. 미끄런 품. 아이구. 토키를 찍고 올라면 되는데. 보다 못한 동생이 그만 웃으면 말해버렸어요. 호랑이는 토키를 찾아. 찍으며 올라갔어요. 오누이는 무서워 눈을고 깜고 하늘에 비웠어요. 하느님. 도망추를 내려 주세요. 그러자. 하늘에서 동아치를 내려 왔고. 오누이는 동아치를 타고 하늘로 올라갔어요. 일을 본 호랑이도 동아치를 내려 달라고 비렀어요. 그런데 이번에는 속은동에치 뭐예요?
I’ll finish tomorrow.