Shikkaku Mon no Saikyou Kenja - Sekai Saikyou no Kenja ga Sara ni Tsuyoku naru Tame ni Tensei Shimashita - Vol. 19 Ch. 59 - The Strongest Sage Severs…

[MangaDex]

 

[Tired_Man]

Oh hell yeah, their technology actually evolved in this series. I remember they had to wait for the letter to arrive from the king to their city from the earlier chapters.

 

[welcome2atlantis]

Oof, they did destroy one whole city. Talk about collateral damage.