"Tsuyoshi Nakano is a major character in the manga Insta Girl. He is a handsome and charming young man who is known for his impressive social media presence. Tsuyoshi is a popular influencer on Instagram, where he shares his stylish and glamorous lifestyle with his large following.

Tsuyoshi is portrayed as a confident and ambitious individual who is always looking for ways to increase his popularity on social media. He is very dedicated to his craft and puts a lot of effort into creating the perfect image for himself online. Tsuyoshi is known for his impeccable fashion sense and is often seen wearing designer clothes and accessories.

Despite his seemingly perfect online persona, Tsuyoshi is not without his flaws. He can be quite selfish at times and is willing to do whatever it takes to get ahead, even if it means hurting others. He is also quite shallow and tends to judge people based on their appearance rather than their personality.

Tsuyoshi is a complex character who is constantly grappling with his own insecurities. He is determined to maintain his status as a top influencer, but is often plagued by self-doubt and anxiety. Tsuyoshi is also struggling with his own identity and is unsure if his online persona truly reflects who he is as a person.

Throughout the course of the manga, Tsuyoshi undergoes a journey of self-discovery and learns to come to terms with his own flaws and insecurities. He starts to see the importance of being true to himself and is able to develop deeper and more meaningful relationships with those around him.

Overall, Tsuyoshi Nakano is a well-rounded and multi-dimensional character who adds depth and complexity to the world of Insta Girl. His struggles and triumphs make him a relatable and engaging figure, and his impressive social media skills make him an important figure in the story."