Thank you very much for your reply!
I am looking even more forward to see the next episodes of Rainbow. I hope we get at least 24-26 episodes, or like you said if they go for the entire story some 50+ episodes and to see the manga scanlated beyond chapter 3 soon (which probably is just wishful thinking).
I wanted to ask you, since I saw in the Rainbow anime thread that the manga is one of your favorites, if you could spoil me about the story beyond chapter 3 (scanlations are unfortunately really slow). And do you know how many episodes we will get with this anime adaptation? I would very much appreciate it, if you have the time to give me a reply.