Become a student in the spicy visual novel Summertime Saga. The story begins when your protagonist's father dies. That, of course, means that his debt to the Mafia gets transferred to you and your family.
Summertime Saga doesn't follow a strictly linear development, so you're free to visit any part of the city whenever you wish and interact with all the characters you meet along the way. But, keep in mind that only three events can be completed per day. After that, you have to go to sleep and start a new day.
Your protagonist has a number of features that can be slowly leveled up as you participate in different events. For example, improve your charisma by competing in rap battles, or your physical appearance by going to the gym, etc.
One of the most interesting elements of Summertime Saga is that you can develop romantic relationships with many of the characters, much like you would with other visual novels. Learn more and more interesting details about the characters' backstories as you get to know them better.
Go on an adventure with Summertime Saga. You'll enjoy the entertaining (and sometimes risqué) story, numerous subplots, and strikingly good graphics.