Week 5 inside the "Pinoy Big Brother Celebrity Collab Edition" house felt like something straight out of a K-Drama. With Korean actor Kim Ji Soo entering as a special guest, the vibe was infused with just the right amount of kilig and feel-good energy.

Housemates Will Ashley and Michael Sager were tasked with writing two original drama stories with Ji Soo as the main character. He had to deliver three Filipino lines in each act. For every line he uttered perfectly, the housemates earned the chance to remove one layer from their “hearts tower” challenge, wherein the housemates, divided into two groups, must stack a five-feet-tall tower of cups with a half-heart base on a floating platform. To win, the two groups must carry the platforms across the pool and bring them together to form a full heart.

With the "hearts tower" task, the housemates found themselves reflecting on what love truly means to them. 

For Michael, love is seen in the quiet sacrifices of his parents. It’s the things you do for other people, he thought, recalling the long hours his parents spent working hard to give their family a good life.

River Joseph brought us straight into K-Drama realness as he talked about his grandparents, who were married for over seventy years and showed him what it means to love someone through every season. "'Til the very last day I saw in them what true love was. When you choose your partner everyday, no matter if you fight, you go through the worst of things, you still choose your partner."

Viewers can watch "PBB Celebrity Collab Edition" online via live streams on Pinoy Big Brother's YouTube page, Kapamilya Online Live (KOL), iWantTFC and TFC.