Thanks to Hypnosis-chan’s Sacrifice, the Seal is Broken.
One of the two final locks within Yujin’s soul had been released.

The second restriction after regression.
The mystery of the first timeline.

Why…
Why didn’t he ever have children with his wives?

A memory that he had been compelled to keep secret until now began unraveling Yujin’s mind.

[“Disciple...? But I’m already thirty-five… This is seriously dangerous…”]

‘Now that I think about it, back then, Master was worried about having children at an older age…’

And at last, a memory from the first timeline resurfaced.

In that recollection, …