[ 2015 ]
He Xinlong matched into Seoul National University Hospital under transplant surgery residency following graduation from Seoul National University College of Medicine.
Kim Geonwoo matched into Seoul National University Hospital under cardiothoracic surgery residency following graduation from Sungkyunkwan University School of Medicine.
Institutional records indicate both residents entered SNUH during the same intake cycle. Initial documented interaction reportedly occurred outside the hospital parking structure prior to residency orientation proceedings.
Witness accounts suggest Dr He Xinlong occupied a seat directly behind Dr Kim Geonwoo during residency orientation proceedings, despite multiple available alternatives within the auditorium.
Contact exchange documented shortly afterward.
Beginning of long-term professional and personal affiliation between Kim Geonwoo and He Xinlong.
[ 2016 ]
Second-year residency cycle initiated under continued cardiothoracic and transplant rotation alignment.
Interpersonal association between Kim Geonwoo and He Xinlong continued throughout overnight surgical scheduling periods and emergency transplant assignments.
Relationship formally established during second-year residency term following an extended period of documented interpersonal association, marking the beginning of a partnership recurrently referenced throughout subsequent institutional records.
Concurrent departmental records indicate Kim Junseo and Zhang Jiahao entered long-term relationship during affiliated fellowship cycle.
Expanded interpersonal affiliations formed between multiple residents within the same surgical cohort.
[ 2020 ]
Final residency cycle completed under ongoing specialist retention review.
Joint future planning discussions documented surrounding long-term hospital placement, fellowship applications, and international surgical advancement opportunities.
Application submitted for Harvard Medical Fellowship consideration.
Extended interpersonal instability observed during final residency period.
Communication breakdown between Kim Geonwoo and He Xinlong escalated shortly before specialist placement review cycle.
Relationship blackout initiated.
He Xinlong formally departed Seoul shortly afterward and suspended all known personal contact channels.
[ 2025 ]
He Xinlong returned to Seoul National University Hospital under a temporary transplant surgery and perfusion research appointment. A preservation-focused research initiative associated with his appointment was later expanded into the CryoBridge program, incorporating additional cardiothoracic participation and resulting in the selection of both He Xinlong and Kim Geonwoo as co-principal investigators.
First documented interaction between Kim Geonwoo and He Xinlong following prolonged communication blackout occurred during CryoBridge onboarding review.
Multiple departmental records documented severe emotional and interpersonal instability between both lead investigators following renewed contact during early Phase I operational preparation. Subsequent reports also referenced recurring procedural disruption, unresolved historical conflict, and repeated recollection of residency-era events connected to the prolonged communication blackout.
Concurrent records indicate Kim Junseo and Zhang Jiahao formalized engagement during the same calendar year, with marriage proceedings finalized shortly after completion of the CryoBridge Phase I trial.