Haibara-kun no Tsuyokute Seishun New Game  

灰原くんの強くて青春ニューゲーム, Haibara’s Teenage New Game+

High school is often associated with awkward moments and regrets for many individuals, including Natsuki Haibara, who is currently in his final year of college and experiencing social anxiety. Haibara reflects on his high school years with fondness but also realizes that he missed out on opportunities that could have made his adolescence more fulfilling. Suddenly, he is transported back in time seven years, just before his first year of high school. Now, Haibara must navigate through his past mistakes, climb the social ladder, and win over the girl of his dreams. To achieve his goals, he will require guidance on various aspects such as physical fitness, online resources, support from childhood friends, and determination. Follow Haibara as he embarks on a new journey to make the most of his teenage years.