Female teacher who was so passionate about creampies with her students while her husband was away for four days

Eimi is a teacher who married a colleague this spring. Aoi, a student who secretly cares about her still standing on the pulpit, is unable to study and has deteriorated. Unable to see him, Eimi invites Aoi to her house and teaches her how to study, but fortunately, Eimi's husband is away for four days as he is leading a club activity. Aoi has come to a once-in-a-lifetime opportunity that she has never wished for.