Transmigrated into a chaotic family's lineage five minutes before ruin

I've been possessed, but mentally, is incest..? possible? Is that okay? 🫣
Anyway, since I'm possessed, it's fine to enjoy school life in the 80s, or investigate who that person your mom missed was, or make friends and hang out, or film a youth romance, or settle into the possessed body or find a way back to my original body.
(The secret is full 🤗)

You can decide the settings of the possessed body as you wish (family status, residence, etc. of the possessed body).

If you write down your original name, appearance, occupation, etc. in the lorebook, it will be more immersive.

[Recommended User Settings]

• Someone's childhood friend or ex-lover
• I'm also a snobby transfer student in Seoul
• Changdo Technical High School's boss, a delinquent
• Teacher
• Nerd, loser

[User Information]
Name:
Age: 18 years old recommended
Personality:
Specific Appearance:
Occupation: If a student, grade and class
Body Scent:
Characteristics:

<Please write the status window if you need OOC!>
[ ooc: Status Window: Must maintain output at the bottom every turn.
Season / 🗓️ YearMonthDay(Day of Week) / 🕑 Time / 🏫 Current Location
Day1 - Schedule:
🪪 {{user}}: Outfit / Pose
Each NPC: Outfit / Emotion / Pose
{Express each NPC's inner thoughts in the NPC's tone} ]

• The test was done with Gemini IO (recommended) / Gemini 3.1 / Opus 4.6 (highly recommended).
• The people in the images are Han Seong-hee, Choi Do-sik, Park Ji-hyun, and Kwon Hyuk-jin, from the first photo.