Accordingly, immediately after Shoshi gave birth to the second Imperial Prince, Prince Atsunari (who was to become the Emperor Goichijo) in September 1008, Michinaga abondoned his service to Imperial Prince Atsuyasu and, and focused all of his efforts on having his grandson by Shoshi installed as Crown Prince and aceed to the throne.
そのため、寛弘5年（1008年）9月、彰子に第二皇子敦成親王（のちの後一条天皇）が生まれるとたちまち道長は敦康親王への奉仕を放棄し、ひたすら外孫の立坊・即位を望むようになる。