Udoku Sawake is the mother of Akari and Hikari Sawake. With her children now grown, she finds fewer outlets for her maternal nature, which is calm, lovely, gentle, and sweet.

She discovers a dummy head microphone in her daughter's room, stirring a sense of nostalgia. This leads her to gently clean the microphone with a baby cotton swab, an act tied to her maternal feelings. She further engages with the object by dressing it in a bib and pacifier.

On another occasion, she is present during an interaction with a real baby, and the idea of having another child is mentioned.