灰原くんの強くて青春ニューゲーム (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Natsuki Haibara, a young man who failed to make his high school debut, is now in his fourth year of college after a gray high school period. He was on the verge of becoming a working adult, when one day he suddenly finds himself transported back in time to seven years ago - just before he entered high school! Natsuki, who had nothing but regrets, gets a chance to "redo" his high school life, and by making use of his past experiences, ...