モブの僕がヒロインを助けたら回し蹴りを喰らって失神して、ラブコメが始まった (Associated Names)

Ichiro Moriyama, a boy who has been thrust into the shadows due to past trauma Himeka Urushibara, a beautiful girl who is an honor student and a karate master. One day, Ichiro comes across a suspicious person trying to attack Himeka. Ichiro tries to save Himeka by grabbing the prowler, but Himeka’s roundhouse kick strikes…