Both dramas have a set of girls finding love, searching for a meaning in life, and trying to settle down the best way possible. Both have fun and warm girls' talks, and the dialogues between characters are wel! They have a similar slice-of-life kinda style while each drama maintains its own unique vibe. Tokyo Trareba is more chaotic/energetic, while 9-border has a fluffier and softer vibe.
Hmmm i think of you liked either you're gonna like the second. Character roles might be different, but they both are short, dialogue-centered kinda dramas trying to feel relatable to actual real life be it at home or at the work setting.