At Book Riot she tagged five epistolary historical fiction novels. including:
A Tale for the Time Being by Ruth OzekiRead about the other entries on the list.
A girl desperate to escape the bullying of her fellow classmates in Tokyo writes a series of diary entries documenting the life of her great-grandmother, a Buddhist nun. An ocean away, a novelist living on a remote island discovers a Hello Kitty lunchbox filled with mysterious artifacts she suspects washed away in the 2011 tsunami that devastated Japan. It reveals the lives of people completely unknown to her. Their stories may change her completely, even so.
TW for bullying and mentions of suicide.
--Marshal Zeringue