The covenant of the braves, a one-round web game developed by the shanghai recreational network, is run by 37 games alone and was officially published on 9 october 2015. In the game, the player accepted the mission of saving the world of fruit, in an environment set by the strong, with the help of the fruit hero, who managed hard to defend himself against foreign aggression and to cultivate his own legacy. The background is set on tascana, an enviable land of the world, of the haim, where there is no war, no disease. In the continent of heim, there is a group of fruits and heroes living side by side with the people of heim, with magical power. The mad lord of demons is looking for this quiet territory of the haim continent, trying to stretch the claws of aggression to the haem continent. It led the demon army to a devastating attack on the heim continent. At this time, the haim continent urgently needs something that can lead them against the devil army and save the leader of the haem continent. The prophet heim's body was combined with his magic illusions into a portal, and the player was chosen at that time to be transmitted to the heim continent. In this strange land of heimland, the first dangerous players began to learn their skills, acquire equipment and start looking for fruit heroes living on the continent under the guidance of the master of the city and the tea sister. In the end, the players will gather all the fruit heroes, and they will make a pact with the masters and the fruit heroes to expel the devil's army and die to defend the peace of the continent of heim. The game starts with two roles, male and female, and can choose one of odin and loki. The roles of men and women, apart from changing their appearances, are not different. There are many heroes in the game who can choose, and they can unlock their respective heroes by fulfilling certain conditions. When a player acquires a tool for upgrading experience in a game, he or she can upgrade his or her use, upgrade his or her ranks, and grow significantly after he or she upgrades his or her attributes. Once the role of player and hero has reached full height at the current stage, it will be necessary to evolve the heroes in order to continue their advancement, ranging from green, blue, purple and orange colours, from low to high, with some heroes being tall and others being tall and orange. Players can work out in the main city every day and free their hands. With the cumulative time of fitness, gain experience. There is a ceiling on the daily exercise time, and it is no longer possible to continue. Fitness has room additions, and additional experience is added in the exercise. Each room is for one player, who can rob each other. When the player's fitness time increases to a fixed node, life is crystallized。