Here is a possible concise summary:
Raisa is a college student who shares her horror story with a YouTube channel. She tells how her family has a protective figure of a white grandmother who often appears to them, especially after her father's death. She also tells how she has experienced some mystical incidents, such as seeing a black shadow, having her glass broken by an unseen force, and being followed by spirits. She wonders if the white grandmother is still with her, even though she has never seen her. She invites the viewers to share their opinions and stories in the comments.
Here are some key facts extracted from the text:
1. Raisa's family is one of the direct and close descendants of a king in Sulawesi.
2. Raisa's father died in 2005 due to kidney failure and his mother saw a white figure coming out of his body.
3. The white figure is believed to be the protector of Raisa's family who follows and accompanies their descendants.
4. Raisa's older brother, Bang Daud, had an accident and suffered from amnesia after he shouted at and chased away the white figure.
5. Raisa's nephew, Tommy, saw the white figure in his Islamic boarding school but ignored her as instructed by his mother.
6. Raisa experienced a mystical incident where a black creature attacked her and threw her cellphone, but her mother saw it as a dry black rose.
7. Raisa became more sensitive to spirits around her and some people who could see spirits told her that the white figure was following her.
8. Raisa never saw the white figure herself, but she believed that she was protecting her from harm.