Story
The web anime Koi-ken! is created by studio Marvy Jack, based on a mobile dating-sim game that depicts the campus life of members of Renai Kenkyuukai (The Society for the Study of Romance) or "Koi-ken". The protagonist's "extremely ordinary" high school life changes overnight when he encounters Kaede, a girl who is returning from living abroad and transferring into the school. (based on ANN synopsis)