After his boss persuades him one night, Kazuya, a 28-year-old divorced salaryman visits a massage parlor where he meets a charming young lady named Nagisa. He takes her contact information but loses it when his aunt requests his assistance in cleaning up their complex's house for a new inhabitant. As fate would have it, the new resident is Nagisa, accompanied by her five children ranging in ages from toddler to teenager. Nagisa's husband passed away, and now she is struggling to provide for her offspring. To compound matters, she is only 21 years old and may have never consummated her marriage.
