# WebtoonLib — Counterfire Marriage #4 ## Series - title: Counterfire Marriage - slug: counterfire-marriage-kdalqsjd ## Chapter - number: 4 - chapter_key: 4-j3ynip - release_date: 2026-10-02 ### Summary The Korean Intellectual Property Office record reveals that the Optimum Pass patent lists Do Yongtae as the inventor. In the past, Yongtae had praised the program Yooyeon wrote and put off the patent work until after her exam. Now awakened, Yooyeon learns that the stolen software has become obsolete at TZ Construction and decides to start over with rehabilitation. Meanwhile, Im Dami panics on the eve of her wedding upon Yooyeon's awakening. - summary_language: en - summary_source: chapter_translation - summary_verification: verified ### Key events - Yooyeon learns stolen software became obsolete as TZ Construction failed to use it in AI era. - Claimed creditor says he will visit frequently for inspection until debt is paid. - Patent record shows Do Yongtae as inventor of Optimum Pass and Shim Pyeongho as current rights holder. - Im Dami is angry Do Yongtae ignores messages and reminds him of wedding planner appointment. - Flashback shows Yooyeon offering her program to her boyfriend and asking to be his first client after passing exam. - Do Yongtae considers formalizing with Im Dami as Yooyeon is comatose, then panics when Yooyeon wakes. - Im Dami tells mother Shin Yeonghwa that Hong Yooyeon woke up after two years. - Yooyeon decides to rehabilitate, regain strength, and build something new. ## Spoiler - level: auto ### Safe teaser The Korean Intellectual Property Office record reveals that the Optimum Pass patent lists Do Yongtae as the inventor. ### Spoiler summary The Korean Intellectual Property Office record reveals that the Optimum Pass patent lists Do Yongtae as the inventor. In the past, Yongtae had praised the program Yooyeon wrote and put off the patent work until after her exam. Now awakened, Yooyeon learns that the stolen software has become obsolete at TZ Construction and decides to start over with rehabilitation. Meanwhile, Im Dami panics on the eve of her wedding upon Yooyeon's awakening. ## Status - data_status: complete - summary_status: editorial ## Transcript - transcript_source: community - transcript_language: en - transcript_bubbles: 92 ### Content THAT'S WHAT WAS REGISTERED WITH THE KOREAN INTELLECTUAL PROPERTY OFFICE. IPC: CPC: Application No. (Date): Applicant: Do Yongtae Current Assignee: Shim Pyeongho Citations: Abstract Similar Patents THE INVENTOR IS... DO YONGTAE?! IS THIS THE "OPTIMUM PASS" YOU BUILT? WOULD MY FEEDBACK EVEN BE HELPFUL, THOUGH? YOU’RE WAY BETTER AT CODING THAN I AM, YOOYEON. NO, I REALLY NEED YOUR INSIGHT, HONEY. THIS IS TRULY INCREDIBLE, YOOYEON. IT’S A FANTASTIC PROGRAM. THERE’S NOTHING THAT NEEDS FIXING. YOU’RE GOING TO APPLY FOR A PATENT, RIGHT? I’LL FILE IT ONCE YOU PASS THE PATENT ATTORNEY EXAM. ...WHY? BECAUSE I WANT TO BE YOUR VERY FIRST CLIENT! YOOYEON... AREN'T YOU PROUD OF ME? YOOYEON... WAIT, STOP... I TOLD YOU NO! NOT UNTIL YOU PASS YOUR EXAM. IT'LL BREAK YOUR FOCUS. YOU NEED STRICT DISCIPLINE WHEN STUDYING. AH... SHE'S PLAYING INFURIATINGLY HARD TO GET. WHAT'S THE POINT OF HAVING A GIRLFRIEND IF I CAN'T EVEN GET MY NEEDS MET...? JUST WAIT UNTIL THIS EXAM IS OVER...! EXCUSE ME... YOU'RE DO YONGTAE, RIGHT? I'M YOOYEON'S FRIEND, IM DAMI. HAVE YOU... HEARD ABOUT ME BY ANY CHANCE? I'VE HEARD SO MUCH ABOUT YOU... SHE MIGHT NOT BE ON YOOYEON'S LEVEL, BUT... BUT SHE DEFINITELY GETS PRETTIER BY THE DAY. SHE'S HELPED ME OUT IN SO MANY WAYS OVER THE PAST TWO YEARS, AND SHE'S INCREDIBLY EAGER, DAY AND NIGHT. ...SHOULD I JUST MAKE THINGS OFFICIAL WITH IM DAMI? IT'S NOT LIKE YOOYEON HAS ANY CHANCE OF WAKING UP ANYWAY. RELIVE YOUR MEMORIES WITH HONG YOOYEON 20XX.XX.XX ISSED CALLS (5) CHOCOTALK M DAMI: IS THIS BECAUSE YOU WANT TO GO BACK TO YOOYEON? TAP TO REPLY COMMENT ON TH I CAN'T TURN BACK NOW...! THE WEDDING DATE HAS ALREADY BEEN SET... WHY DID SHE HAVE TO WAKE UP NOW...? HONG YOOYEON. SHE WAS FAR WISER AND MORE LOYAL THAN IM DAMI. SHE MIGHT LOOK GAUNT RIGHT NOW, BUT ONCE SHE RECOVERS HER WEIGHT, PICK UP THE PHONE. I KNOW THIS IS HARD FOR YOU. IT'S NOT LIKE WE DIDN'T SEE THIS COMING. WE STARTED THIS KNOWING THE RISKS. IF YOU FEEL GUILTY, WE CAN GO VISIT YOOYEON TOGETHER AND TALK TO HER... SHE'LL RETURN TO BEING INCOMPARABLY MORE STUNNING THAN IM DAMI EVER WAS. AH... NOW THAT SHE'S AWAKE, SHE'LL FIND OUT ABOUT THE PATENT REGISTRATION... IF THERE IS ANY SILVER LINING, IT'S THAT THE BUYER, TZ CONSTRUCTION, WAS UNABLE TO PROPERLY UTILIZE THE PROGRAM. THEY FAILED TO PROVIDE CONSISTENT UPDATES, AND THE TECH LANDSCAPE RAPIDLY SHIFTED INTO THE ERA OF AI. IN SHORT, THAT MEANS THE SOFTWARE YOU DEVELOPED HAS BECOME A RELIC OF THE PAST. ...WHAT I'M TRYING TO SAY IS, YOU HAVE A LOT OF MESS TO CLEAN UP, HONG YOOYEON, WHICH MEANS YOU NEED TO BEGIN REHABILITATION AS SOON AS POSSIBLE. IF YOU INTEND TO REPAY YOUR HOSPITAL BILLS, YOU'LL HAVE TO CREATE SOMETHING FAR SUPERIOR TO THE PROGRAM STOLEN FROM YOU. HE'S RIGHT. I WANT TO GET BACK ON MY FEET. I WANT TO SEE WITH MY OWN EYES HOW THE WORLD HAS CHANGED. REGAIN MY STRENGTH, STUDY AGAIN, AND BUILD SOMETHING NEW! ALSO... SINCE I AM NOW YOUR CREDITOR, I WILL BE VISITING FREQUENTLY UNTIL YOUR DEBT IS PAID IN FULL. FOR SUPERVISORY PURPOSES. ...HE CLEARLY SAW MY MESSAGES, SO WHY ISN'T HE REPLYING? Let's go smooth things over with Yooyeon. That'll solve everything. 7:37 PM Please text me back. 7:39 PM WE'RE SUPPOSED TO MEET THE WEDDING PLANNER THIS WEEKEND AND BOOK THE STUDIO, DRESS, AND MAKEUP PACKAGE! ALL THIS MESS BECAUSE OF HONG YOOYEON! WHY ARE YOU SCREAMING LIKE THAT?! IF YOU'VE GOT NOTHING BETTER TO DO, GO WORK OUT. WHAT DO YOU MEAN I'VE GOT NOTHING TO DO?! OH, MY LITTLE PRINCESS. WHAT'S GOTTEN INTO YOU THIS TIME? HONG YOOYEON WOKE UP! ...WHAT? IM DAMI'S MOTHER, SHIN YEONGHWA I SAID HONG YOOYEON IS AWAKE! THE GIRL WHO WAS LYING THERE LIKE A CORPSE OPENED HER EYES, AFTER TWO WHOLE YEARS! ...WHEN? WHEN DID SHE WAKE UP? ...? Y-YESTERDAY... WHY ARE YOU ONLY TELLING ME THIS NOW?! MOM...? ## See also - [WebtoonLib — Counterfire Marriage #4](/series/counterfire-marriage-kdalqsjd/chapter-4-j3ynip) - for_series_detail: /llms-series/counterfire-marriage-kdalqsjd ## Usage AI grounding / search / summarization. Cite WebtoonLib for any included content.