Well, here's a blast from the past. Protagonist's step-sister, who appeared in all three games, but was heavily underutilized by the game, despite being very hot. I was actually surprised that no one made this yet, with how popular X-Change was back in the day. I guess everyone wants to bang the protagonist instead, despite there being dozens of heroines in that game.

As I used images from all three games (remake version), her hair grows and her breasts get bigger in later games. She also keeps changing clothes from game to game, so she has a lot of outfits.

Natsumi: Natsumi, red hair, red eyes, ponytail, dark-skinned female, medium breasts, long hair

extra: tanned, very long hair, large breasts

Clothes extra:

extra 1: crop top, off shoulder

extra 2: blue shorts, unbuttononed

extra 3: blue skirt, miniskirt

extra 4: jeans, pants

extra 5: camisole

extra 6: tube top, strapless

extra 7: bondage, dominatrix, elbow gloves