I'm not sure specifically what the 'Tekking 101 Manga Girl Story' is about as there isn't much information given just from this title. It could be a story about a girl in a manga that has some unique elements related to 'Tekking 101', perhaps a story about a girl who is into tekken - like fighting in a manga world.
Since the title implies a girl is central to the story, she's definitely a main character. There could be other characters like a mentor figure who guides her in the Tekking 101 world. Maybe there are some opponents she has to face in the story. For all we know, there could also be a group of friends she teams up with in the context of Tekking 101, but without more information, it's just speculation.
The Wano Arc has indeed come to an end. It was a long and action-packed arc with many memorable moments and plot twists. The conclusion wrapped up various storylines and set the stage for new adventures.
The Wano Arc did come to an end. It was a long and intense arc filled with many memorable moments and plot twists. The conclusion wrapped up various storylines and set the stage for new adventures.