The couple have two children and have collaborated on a children's book titled Oobo— Nu— Tochiibo— Nu— (おおぼーぬーとちぃぼーぬー), which Takeuchi wrote and Togashi illustrated.
Pasangan ini memiliki dua anak dan telah bekerja sama membuat buku anak-anak berjudul Oobo— Nu— Tochiibo— Nu— (おおぼーぬーとちぃぼーぬー) yang ditulis Takeuchi dan digambar Togashi.