Themes like friendship and rivalry are quite common. In 'naruto x cote fanfiction', Naruto might form new friendships with the COTE characters, or he could become rivals with some of them due to their different goals and personalities. Also, the theme of self - improvement is there. Naruto's journey in the COTE world could be about learning new things and growing as a character in a different context.
There are many 'naruto x cote fanfiction' out there. Some might focus on Naruto being a transfer student in the COTE world. He could bring his ninja ethics and combat skills to that world. This often leads to some really cool scenarios where he either outsmarts the COTE characters or learns from them in unexpected ways.
Yes, the Quintessential Quintuplets manga has come to an end. The final chapters tied up loose ends and gave closure to fans. It was a memorable journey throughout.
I'm not entirely sure as I haven't read it specifically. But generally, a visual novel about quintuplets might be centered around the lives and stories of five siblings, perhaps their relationships, adventures, and personal growth. It could also involve themes like family, friendship, and love.