Ikoku Nikki

Reclusive novelist Makio Koudai has always preferred the company of books—but when her sister and brother-in-law pass away, Makio unexpectedly becomes the guardian of her 15-year-old niece, Asa Takumi. As they navigate grief, clashing personalities, and the challenges of living together, the two slowly open their hearts to each other, discovering warmth, understanding, and the meaning of family.
(Source: Crunchyroll)