At some point in her life, Keiko met a man named Daku, whom she soon married. Together, theu had a son named Yasu. Keiko is a very kind and loving mother and wife, as she sang Yasu a lullaby every night when he was younger and read him bedtime stories. She also loved her husband, Daku, as sheshowed concern when he started to have trouble walking and caught a cold and later looked for him he disappeared from school.
After the sudden disappearance of her husband, Daku, Keiko crossed paths with Kintoru at Yasu's school. Shortly after, she was imprisoned in her own house's basement for at least 30 days and was under Kintoru's curse. She haunts the family house, taking Yasu by astonishment as he explores it. In Nightmare mode Keiko can be encountered at Yasu's school.
