If he could inherit the teacher's secret techniques without having to use up an eyeball, Daozi would be very pleased.
Although both 'Sage's eyes' had already been given to Tyrannical Song, and ownership had gone over to the other party.
But after all, this is one of the teacher's few remaining legacies.
There are only so many relics left by the Sage, and each one used is one less, never to be replenished.
If it could be made recyclable, Daozi would naturally support it with all his might.
...
...
After making the agreement, the Will of the Heavens + several rulers of the Netherworld + several of the top Immortals + Lady Kunna, who silently contributed behind the scenes, joined hands to tackle a technical problem together.
After contributing his 'Heavenly Dao Level Computational Ability,' Daozi then immersed himself in researching the 'Dark Sun' project—he aimed to rapidly develop the technology for [If Merged with the Ruler of Netherworld].