Attending school with your X-Sister
Same Sex, Same School: How to Form an X-Sister Bond
Search for a like-minded or similar partner within the school. The probability of bonding is high among girls in the same grade or with similar interests.
In a secret location (at a dormitory bedside, the back corner of a classroom, etc.), make a solemn vow to stay together for life, regardless of the world's standards.
Exchange items filled with mutual affection—handwritten love letters, matching hairpins, or handkerchiefs—to serve as a token of the bond.
Q. How is this different from a typical 'best friend'? A. While typical friendships exist within social norms, the X-Sister relationship is distinguished by giving each other higher priority, sometimes accompanied by passionate emotions close to homoerotic love.
Q. What if my parents object? A. Parents of the older generation will define this as an "undesirable bad habit" and try to forcibly break the friendship. In this case, be careful, as you may need to hide letters more secretly or consider emergency measures such as running away or going into hiding together.

Gyeongseong, 19■■, Moran Girls' Higher Common School
Release Date 2026.08.15 / Last Updated 2026.08.15