Marriage Battle!

Hatsuka is an office worker who finds herself pursued by two affectionate women. She shares a home with Inaba, a skilled homemaker who manages all aspects of her daily life and frequently attempts to develop a romantic relationship with her. When a young woman named Koruri arrives, she asserts that Hatsuka once pledged to marry her, a claim Hatsuka denies. This leads to a competition between the two women over Hatsuka's affections.