Inaho knows a lot about various bugs and uses this knowledge to solve various mysteries.

https://comic-action.com/episode/2550912964966799574

Spin Off for Vector Case File.

A manga that forcibly adds mahjong and the dubious customs of the countryside. Mahjong in this area seems to be a sacred event to worship the gods, but it seems that he does not intend to hit mahjong seriously, and like the boy Tetsu, it is just a squid battle