Jin I-kyung realized that Gi Su-jong had deceived her and gave chase.

In the episode broadcast on the 12th on tvN's How to Become a Building Owner in Korea, Jin I-kyung (played by Jeong Su-jung) learns that Gi Su-jong (played by Ha Jung-woo) lied to her.
Furious, Jin pursued Gi Su-jong while Kim Seon (Lim Soo-jung) and Ki Da-rae (Park Seo-kyung) fled in haste. Gi barely escaped his pursuers as he ran. Cornered, he phoned Yona (Shim Eun-kyung) and received a text from Kim Seon asking for help.
Gi Su-jong sent Yona a message pleading for help, but she did not respond. Meanwhile, Jin climbed to the upper floor wielding a broken soju bottle. When a previously barred door swung open, Gi Su-jong was set upon.
Jin's aide located Kim Seon and Ki Da-rae but was attacked by Kim. As the two tried to flee, Jin stormed in, weapon in hand. Yona then appeared in front of the beaten Gi Su-jong.