Kindaichi Shonen no Jikenbo N (2014)

It's so similar: a clever and famous high school detective and a somewhat talented assistant (girl), who have feeling for each other but are shy to confess, solve mysteries

The first ever vision. It's cute with baby Yamasama. check it out. Though his character is the polar opposite.

This is where all the YamaShi ships come from.

Story of detectives coming from unconventional settings.