It's tradition/superstition that if the dolls aren't taken down by March 4, the daughter will experience hardship in finding marriage.

Looks like Shourei got bigger over the the time of raising his baby sister.

On another note : It's amusing how Sakuya hasn't really aged

I want that backpack XD

Brucelee41126 said:

On another note : It's amusing how Sakuya hasn't really aged

Technically she is "timeless" (perfect momento) due to her ability to manipulate time.

Siegmund_200% said:
Technically she is "timeless" (perfect momento) due to her ability to manipulate time.

perfect momento? Whats that?

Also reimu and marisa are still human and rerisa must be an old hag by now.