User blog comment:Imouto-tan/Chou-Chou/@comment-25574902-20151202043200/@comment-26362471-20151202111243

Thanks for your comment :D

They all share one central memory,  but they also can hide certain memories from each other if they deem it important to them.

She is a ruler after all,  and she just jas to measure up to the rest of the competition.