is an episodic, adult-themed visual novel developed and published by Inceton Games . Released on March 25, 2021, it is a Ren'Py-based remake of an older RPG Maker title, "My Sister Mia". The game follows a young protagonist navigating a pivotal summer period defined by personal discovery, humor, and complex interpersonal dynamics. Story and Premise
The story is framed as a "railroad" visual novel, meaning it focuses on a specific narrative path with limited branching choices. The experience is episodic, with Season 1 focusing on the initial tension and evolving intimacy between the protagonist and Mia.
: A major draw for players is the extensive gallery room, which features over 1,100 bonus scene images and various unlockable animations based on player choices. Core Characters Summer with Mia Season 1Summer with Mia Season 1
: Players can choose to enable or disable "NTR" (Netorare) content at the beginning of the game, which affects specific bonus scenes and plot developments.
: The emotional centerpiece of the story, depicted as a 21-year-old with a complex personality and evolving vulnerabilities. is an episodic, adult-themed visual novel developed and
: At the start of a new game, players can define the relationships between the four main characters (e.g., family, friends, or roommates) to navigate platform restrictions regarding certain themes.
The narrative begins two days before the end of high school. You play as an 18-year-old student who is struggling to catch up on schoolwork to pass his final exams. While his parents are away on a week-long trip to France, a night of late-night studying is interrupted when his roommate (or sister, depending on user settings), Mia, returns home in an inebriated state, setting off a series of debaucherous events. Story and Premise The story is framed as
: Unlike sandbox games, this title prioritizes long-form storytelling through dialogue and situational development.