Singer and actor Seo In-guk is bringing laughter to fans with his reversal charm, shifting between seriousness and playfulness.

A video titled 'Seo In-guk is the Most Adorable Inguk Shark, Doo-roo-roo Doo-roo-roo,' released on February 28, 2025, captured both Seo In-guk's handsome side and his mischievous side. Scenes where he instantly switches from a serious, masculine vibe to cute expressions and actions captured viewers' attention.

■ "Starts with handsome, ends with cute"... The comment section is full of laughter

The comment section was flooded with reactions to this reversal charm. One fan said, "I love this short so much — it starts with handsome and ends with cute," while another fan laughed, saying, "He was so cool and then suddenly became adorable."

Reactions continued suggesting that 'cuteness' itself is Seo In-guk's defining trait. Comments highlighting the contrast between his looks and playful behavior followed one after another, such as "The reason Seo In-guk is cute: he's genuinely cute," "He seems to know very well that he's cute," and "It's not easy for someone so handsome to be this cute."

■ From the 'capital letter N' imagination to the 'kids' water bottle' observation

In particular, Seo In-guk's reactions related to the shark became a source of laughter for fans. One fan left a comment saying it was cute how he seemed worried the shark might mistake him for a sea lion, and the comment received more than 20 likes. In recent comments, fans also found his imagination amusing, referencing the same scene with the phrase 'capital letter N.'

Even the equipment in the video did not escape fans' observant eyes. Along with remarks that the oxygen tank looked small compared to Seo In-guk's physique, witty comments appeared such as "It looks like a kids' water bottle."

Reactions from overseas fans were also observed. Comments continued in English saying "Cute" or using emojis to welcome Seo In-guk's appearance, and one fan mentioned his looks and cheerful side in Portuguese.

■ 8th place in the Netizens' Awards Male Acting Category... Can he challenge for the top ranks?

As such, interest in Seo In-guk's diverse charms extends to the Netizens' Awards in September. As of 6:43 p.m. on the 17th, Seo In-guk has earned 864 votes, ranking 8th in the Male Acting Category.

With the voting period still remaining, there is a possibility that the rankings could change depending on whether fans rally together. If the votes of fans supporting both his immersive performances as an actor and the friendly reversal charm shown in the video come together, he could aim to move beyond the middle ranks and enter the top tier.

Although the video was released in February 2025, reactions have continued in the comments until recently. As Seo In-guk continues to captivate fans with his reversal charm bouncing between seriousness and playfulness, attention is focused on whether this wave of support will carry over to the Netizens' Awards voting and boost his ranking in the Male Acting Category.

[This article was written based on a video released on February 28, 2025, and viewer comments. AI provided partial assistance.]