Tegamibachi: Hikari to Ao no Gensou Yawa

Just like the manga I find Letter Bee and D.Gray-Man quite similiar. Allen and Lag both have special eyepower, they have bit of same personality, they join organizations which make 'em go to journeys and the overall feeling of the series is quite similiar except D.Gray-man is bit darker than Letter Bee. 

The delivery of important letters that help those in darkness in some way or another, that is the overall theme of these two anime, though there comes a difference with the genera and place, the feel of those letters being delivered is awsume 

traveling in the 18 century theme , and have a gun. and have the same sad toon.  

18 century theme with fantasy twist, yung boy do dingerce job with help of animal and a super gun, and travel around the world helping people. 

18 century theme with fantasy twist, yung boy do dingerce job with help of animal and a super gun, and travel around the world helping people. 

The coloring in some parts of the movie and the little OVA remind me of each other. Also, there is a simular mood. A main star in each has pale hair coloring, but most of all, it is the mood that reminds me of each other.