Inko Midoriya and her son Izuku, both of whom are Borrowers, are seen by humans, but both are gentle.

A year after she left her old house, Arrietty is unhappy with her parents wanting her to marry Spiller because she had a crush on Sho ever since he saw her in that room.

A year after Sho and Arrietty saw Sadako die a peaceful, painless death by old age, they close the knot and become spouses.

Inko falls in love with All Might and seeks to replace Hisashi, her ex-husband and Deku's dad, with him. (I wrote this in less than an hour. That's why it's just under 400 words long.)