Without Alona, ​​I can only use the airdrop system.

A teacher who survived a car accident arrives in Giwatos, having forgotten his name and discovering he can no longer use adult cards, and that Alona is not yet in the Shiting Box. Thus, the newly arrived system—Terra Armaments—becomes his primary means of dealing with Giwatos's troubles. However, the teacher also discovers that besides facing numerous arcane arts, there are other types of enemies... Special Note: 1. This is a single-route story focusing on Hina; there is no harem element. 2. It will contain diverse content (reincarnators, world travel, etc.).