True Love Story is a visual novel styled love simulation game where the protagonist meets many girls and has one one month time to make one of them fall in love with him. The player moved to a new town and is living with his younger sister. The story progresses in a typical visual novel style where one reads onscreen text, talks to present characters and moves from location to location in a determined order. Free movement is not done directly on a map but is rather scheduled. During school and lunch breaks the player can schedule places on school campus he wishes to visit, and after school additional scheduling of the place around the town can be selected. Depending on place one visits, the location will have different girls to talk to, or if noone and the player will soon leave the place without engaging in any dialogue with anyone.
The game uses full voice acting for main heroines but not all characters, and character animations are done at minimal with variation in static poses and dispositions. Upon creating the protagonist by entering his name (or leaving the default one) and setting up some of his parameters, the game will prompt the player to select the season during which the story will take place. Story itself will not change, and neither will most of the dialogues, but the outfit heroines and characters will change to fit the selected season (they may wear short shirts during summer or winter jacket during winter season). Finishing the game unlocks bonus extras which can be accessed via main menu.