Gravitation Chapter 54 Discussion

Okay so there's the end, finally. I knew it was gonna be a happy one.

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                        The manga series comes to end... It's going to get a 6 from me because I couldn't keep up with all the new drama that was introduced in each volume.  I wanted to know more about Eiri's teacher. Which is the reason I started to read this manga where the anime left off. There was hardly any new information about him aside from the introduction of his sister.