why does mikasa wear a scarf

Maybe it was to hide something on her neck. Maybe a scar or a mark from a past encounter with the supernatural.

Maybe it's to hide his identity or for some sort of protection.

Maybe it's for protection from something, like dust or germs.

Yes, Mikasa dies in the manga. It's a tragic moment for fans.

No, she doesn't. Mikasa survives till the end of the manga.

There was no clear answer to the question of why everyone was wearing 'Dream of the Red Chamber'.

Maybe it's for a unique style or to stand out. It could be part of the character's design.

Bane wears a mask to control the pain and enhance his strength. It's a key part of his character's identity.

Perhaps the mask is just a fashion choice or it might be related to a specific story or event in the BT21 storyline that gives a reason for Mang to wear it.

Mikasa doesn't marry anyone in the manga. Her focus is mainly on protecting and being with Eren.