Talent:
Early to bed, early to rise

A girl who has the same first and last name as Sakuta's first crush. She is a shy middle school girl, but reliable and kind.
She bumps into Sakuta, while holding an umbrella over an abandoned cat in the rain.
~!It is later revealed that the older Shouko that Sakuta encounters is from the future, and is able to return to the past due to her puberty syndrome.!~
(Source: Aniplex USA)