I spent almost the entire morning today transferring the text of all Characters events from my own Cute game journals to my Characters Guide for Cute. The expanded guide should be uploaded by IGN shortly. I dislike the term 'random events' as events in Harvest Moon seldom are random in nature. Almost every event will depend on a variety of requirements which, once met, will allow the event to trigger. I therefore prefer to refer to these events as Character Events.
In Harvest Moon DS and Harvest Moon Cute DS, almost all Character Events are based on Friendship level or FP. There are events that will trigger when a character reaches 100 FP, 200 FP and 250 or 255 FP respectively. These events often have weather and seasonal requirements as well but once all requirements are met, the event WILL trigger.
Some events, like Galen's Fishing Rod Event, Flora's 250FP event and Nina's Stocking Event actually unlock new options. Others simply provide background information on the characters in the game. All events provide points towards your characters' Farming Degree.
The text of all Heart and Rival Heart Events is given in my Courtship and Marriage Guide for Cute and I therefore did not duplicate this information in the Characters Guide. The Characters Guide includes the text of all Events that are neither Heart nor Rival Heart Events.
I did not have sufficient time to cross-reference my 1st Year Events Calendar Guide to add information as to precise date and time of each event to the text section of the Characters Guide. For the date, time and location of any Event included in the Characters Guide, refer to the Calendar section of the 1st Year Events Calendar Guide.