Mrs. Mamiya

Mrs. Mamiya (間宮) is the mother-in-law of Keisuke Suga and a minor character of Tenki no Ko.

Background
She is the mother of Asuka Suga. After her daughter's death, she took the custody of her granddaughter from her son-in-law.

Tenki no Ko
On a rainy day, she had a meeting with Keisuke at a cafe. She rejects his request to see Moka, pointing out that he is still smoking and would give a bad impression to the child.