For the Fake Young Master, My Sister Tricked Me into Going to a Desert Island

Desert Island Survival, No System, No Golden Finger, True and False Young Master In order for the fake young master to inherit the family business, my fiancée and two sisters deceived me into a desert island to fend for myself in the name of traveling. Unexpectedly, there was an accident on the way, and the cruise ship hit a rock and was about to sink. Everyone jumped on the life raft to escape. Since then, I, the fake young master, my two sisters, and my fiancée have been living on a desert island.