Boku to Miraiya no Natsu

[MangaDex]

 

[Puchotek]

some dead scanlation that was not uploaded

 

[Sem]

This one's an interesting read. It really does feel like a novel. The chapters are one off shoots, not at all the standard manga format. The set up is odd too. It's just about a boy on summer vacation who encounters a weird ass man, and they compete in little theoretical mystery solving puzzles for fun.

It's a strange one. I like it.