Kamonohashi Ron no Kindan Suiri 2nd Season EP 8

Toto Maru bring Ron Back to his partnership after he left by solving that case. Ron is a high school brilliant mind of detecting various things. He was with Toto on their previous case as he is one of the genius minds of his academy. Whenever solve any case their bond gets stronger. They face a lot of trouble in their journey and test their bond. Then a mysterious thing came out Ron was connected with a crime committed in the past and his dark background. Toto wanted to help Ron get over that demon's acts. They have to test a lot of troubles.