Love Tutorial in Central Plains

The protagonist's name is Nakahara Kazuya, which has nothing to do with Nakahara, so I picked it up blindly. For reference, there are several Japanese love (pitui) games and running groups. The protagonist app18 is a technical nerd who is timid and talkative, and comes with the buff of love at first sight. It's said to be a love tutorial, but actually I see PL in every game. It was a wonderful death. After all, I am a KP who loves to cause trouble. —————————— I feel like a lot of people have written about this type of writing, so if there are any similarities, then let them be the same.