Chikako Otomo

Chikako Otomo a character in The Cornered Mouse Dreams of Cheese manga. In the live action film she will be played by Miyu Sakihi. She is Kyouichi's wife who suspects him of having an affair.

Personality
She is described by Kyouichi as not the kind of woman to forgive a thing like an affair. Chikako hired a private investigator when she suspected one.

Enjoying shopping, Chikako expresses excitement at the many possible clothing items to buy.

Story
Chikako is sleeping when Kyouichi arrives home. On the sofa opposite, she is delighted to hear the suggestion they go shopping.

Waiting at home, she has filled out divorce papers and requests one from Kyouichi. Sharing that an agent had been hired to find out if he were unfaithful, Chikako figured she would get a bigger settlement plan for pain and suffering.

She then reveals they did not find anything. Feeling that their relationship is only connected by the shopping they do together, Chikako finds herself not wanting anything else from Kyouichi. The relationship is already over and Chikako tells Kyouichi that she has already found someone new.

Kyouichi Ootomo
Even when divorcing him, Chikako told him he did not do anything wrong, that he was the perfect husband. The issue was that shopping was the only connection they had.