The World He Saw TWHS

Takahashi Shinsuke is a rich young man. Shinsuke also works as a licensed detective.

Hanasaki Kenkyo was not yet seventeen when she was married to Takahashi Shinsuke.
The little girl must marry in order to carry out the will of her dead father and to save herself from debt bondage.

However, she did not expect that her husband who was quite far from her age was not what she thought.

They both married on the basis of compulsion. However, over time Shinsuke began to love Kenkyo.

When they have been married for a long time, Kenkyo notices that there is something strange about her husband's attitude.

Shinsuke created his own world due to past trauma. The world that Shinsuke sees, is very different from the world that Kenkyo sees. They see a different world.

Shinsuke is in deepest hallucinations due to past wounds. Shinsuke even accused Kenkyo of having an affair and having a baby with someone else.

Then, how is Kenkyo's struggle to make her husband realize that the world that Shinsuke has seen all this time is a hallucination?

Then, how does Kenkyo take care of his two children while continuing to treat Shinsuke's illness?