On the February 5th broadcast of tvN variety show "Chaga-ne" episode 5, Cha Seung-won, Choo Sung-hoon, Tommy, DinDin, and Danny Gu went on a business trip to Japan to develop a spicy sauce. They visited Shizuoka, Japan, in search of a new spicy flavor. Shizuoka is known as a major production area of fresh wasabi. Cha Seung-won prepared fish cake soup for dinner using Thai chili peppers imported from Thailand. He said, "This will kill," as he made fish cake soup loaded with chili peppers. The soup had a visual resembling "chili soup," with chili peppers and fish cakes harmoniously combined.

The younger members who tasted the fish cake soup responded positively, saying, "It's spicy and refreshing," and "I really like it." Singer DinDin showed tension, feeling pressure from Cha Seung-won. Cha Seung-won asked DinDin, "Do you cook at all?" DinDin replied, "I like cooking. That's why I did cooking shows." Cha Seung-won then suggested that DinDin prepare dinner.

DinDin was selected as the person in charge of cooking and went to the supermarket to buy ingredients. When Cha Seung-won and Choo Sung-hoon passed by the supermarket, DinDin hid his body and confessed, "I'm scared. If I fail, I might be finished." Meanwhile, Choo Sung-hoon and Danny Gu filled their shopping baskets without hesitation. When the total price of the second basket exceeded 30,000 yen, Choo Sung-hoon said, "This will come to about 400,000 won. Men are fools; if they have money, they buy everything."

In the end, the dinner shopping cost reached 450,000 won. Seeing this, Cha Seung-won nagged, "Take out one egg. Why are you buying so many eggs?" Choo Sung-hoon defended the eggs, saying, "Even if you take them out, it's only 3,000 won." Cha Seung-won also asked DinDin, "Why did you buy so much?" and DinDin just looked around cautiously. Cha Seung-won warned, "This is a serious problem. If this continues, we'll go bankrupt," and declared a ban on eggs.

After getting into the car, Cha Seung-won comforted the team, saying, "It's nice that we all shopped together." Choo Sung-hoon expressed concern, "I think we bought too much." DinDin cautiously asked, "Should we refund some items now?" Cha Seung-won responded, "Where would you refund? No take-backs."

Under Cha Seung-won's pressure, DinDin expressed tension, saying, "I feel like I'm going crazy. Something's wrong. I should have just grilled meat." In a pre-interview, he showed confidence, saying, "Actually, cooking isn't difficult for me. If someone says they can't cook, I see that as a lack of sincerity," but in reality, he was feeling pressured.

This episode focused on the cooking battle between Cha Seung-won and DinDin, featuring various attempts to develop the spicy sauce and the cheerful appearances of the team members. Cha Seung-won led the team atmosphere by presenting various cooking-related ideas. Despite the burden of cooking skills, DinDin showed determination to do his best.

This program provides viewers with both entertainment and information through various episodes about developing spicy sauces. Cha Seung-won and the Gangsta Family's spicy flavor exploration will continue in the future.