TST ~ I'm Obedient To My Scum-Big-Sister ~

TST ~ I'm Obedient To My Scum-Big-Sister ~ is a turn-based RPG adventure for players who want body-swap corruption stories with a mix of combat and adult content. The tone stays somewhat playful even as things get rough for its heroine.

Story

Hibiki was turned into a girl through a wish made by his scum of a big sister, and reluctantly took on guild work in this new body. Over time the discomfort faded into something closer to acceptance, and a new mission now pulls Hibiki into a string of encounters that will test how far that acceptance goes.

Gameplay

Players guide Hibiki through guild missions structured as turn-based combat encounters, fighting monsters and rival humans across an RPG framework. Losing fights or triggering certain events opens into corruption-driven scenes, with mind control, transformation, and group encounters shifting Hibiki's standing and unlocking different outcomes. Progress branches toward multiple endings depending on how much control Hibiki keeps or loses along the way.

Features

• Turn-based battles tied directly to corruption and story progression
• Mind control and transformation mechanics that alter Hibiki's role in later scenes
• Multiple endings based on choices and battle outcomes
• 2D character art covering a wide range of encounter types, including monster and group scenes