MTL - I, The System Maker! - Chapter 137

... al condition, she immediately joined Ratatosk. At the same time, Kotori had planned to trouble Chu Chen, but Chu Chen went directly to the next day. He ran to find trouble with DEM and rescued Erya. After saving Erya, Chu Chen went to another world.

In desperation, Kotori could only find Kurumi, and then Kurumi adjusted Mana's state back to thirty years ago.

That's right, Kuang San only found out when he was adjusting that Zhenna's age... Nima seems to be forty-four years old!