"As ordered." The little Taoist boy bowed and left.

Empty island in heart shape.

The so-called Shawan.

It is located in the heart-shaped depression.

This is a bay.

On the beach is silver fine sand that stretches from the shore to the sea.

The little Taoist boy with a smile on his face led Hou Dongsheng to the sand bay.

Climb the stone platform at Shawan.

There are pens, ink and white paper on the stone platform.

Little Taoist: "Young Daoist Hou...this level creates a complete sphere that connects the inside and outside."

Hou Dongsheng: "Are you done? Master Kukai doesn't want to see me, just forget it."

The little Taoist boy quickly laughed and said: "Fellow Daoist Hou... Master Kukai has agreed to meet you. No matter whether you can solve this strange math problem or not, Master Kukai will meet you."

"I don't know how to do this question."

Little Taoist: "You said you can't do it before you start to solve it?"

Hou Dongsheng: "..."

"Why don't you give it a try first?" The little Taoist boy asked Hou Dongsheng to sit on the stone slab, and then he respectfully withdrew.

Looking at the ink and white paper on the stone, Hou Dongsheng was silent for a long time.

It seems like no one has studied this before.

A complete sphere that connects its inside and outside wouldn't be a four-dimensional space, right?
Chapter completed!