Mamiya (間宮明, Mamiya) is a minor character in Weathering with You. She is the mother-in-law of Keisuke Suga.
Background[]
She is the mother of Asuka Mamiya. After her daughter's death, she took the custody of her granddaughter from her son-in-law.
In Weathering with You[]
On a rainy day, she had a meeting with Keisuke Suga at Minoru Cafe Ginza. She rejected his request to see Moka, pointing out that he was still smoking and would give a bad impression to the child.