Who Wants to Be the First? (Season 5)

 was the sixth season of Who Wants to Be the First?. Hosted by nam7ccaothang, listed by his real name Đặng Hoàng Nam. This would be the first season to use the ĐS currency, which stands for Đong Sofia the First. The trailer of the season was released on May 27, 2021 at 9pm (UTC+7), and premiered the next day after the trailer. This season was divided into two mini-seasons, labelled Season 6A and 6B.

In this season, the show's logo no longer contain the show's English name, although the show still uses the Season 5 logo in the first episode. The program also uses the Olga graphic of Vietnam in 2021. The interface of the question and the total prize has been added a few new animations, similar to few countries that are using this Olga version. This type of animation was firstly used in Who Wants to Be the First: Hot Seat (Season 3).

In fact, animation to the question and the total prize interface was already applied in Seasons 2 and 3, on that time when the program uses the PowerPoint software which was designed by Nguyễn Việt Anh, although the program later still used by the receiver. During Season 2, the program uses 2017 Rave from international versions, while during Season 3, the program uses the Rave U.S. 2020 pre-Olga, but this was dropped during the Gamblers Special since the show now had a new software suite made by STR Format. In this season, the program uses another new software based on the software that Ai là Triệu Phú - TV House used until now.

In the UEFA Champions League Edition episode, Olga van den Brandt's graphic identity was edited according to the UEFA Champions League tournament theme, except for the question interface that remains the same, similar to the Christmas Special and New Year Special episodes during Season 4.

The entire sound for this season is almost the same as in Season 5, except for the completely refreshed ending music. The traditional 15-question format also returned this season, for the first time since Season 1. The only different being the number of lifelines was increased to 4 and there is no longer the rule of reusing the lifelines.

A special edition called Second Chance Edition was introduced in the fourth episode of the season. Contestants who left empty-handed or having the least money in the past three episodes were invited for second chance. Contestants who were invited for the Second Chance Edition, were given a new lifeline, Ask the Host which replaced Power Paplu in the previous episode.

During this season, there is also another special edition called 1st Anniversary Special, to celebrate 1-year since the premiere of the show, on July 19, 2020. This was firstly teased when there was an unaired pilot with Đặng Hoàng Nam as contestant taped in early-July 2021. While the show uses the 16-question format, contestant can now adjust the second milestone, typically "safety net" in a high-risk format. This format was firstly used back in Season 4.

In addition to the main host, this season there were invited guest hosts, Nguyễn Ngọc Đức guest hosted the Second Chance Edition, the unaired pilot and the 11th episode.

Money Tree
The money tree now uses the ĐS currency, which was denoted as $ in the real broadcast. The original StF conversion to $ was stated to be 10,000 StF = $1. On the 11th episode, the second milestone can be adjustable by contestants.

Starting on the 12th episode, the currency was swapped with the real currency, Vietnam Dong, or often abbreviated as ₫ or VND.

Lifelines
In this season, a total of 8 lifelines were used. Lifelines provided are varied on each episode.

Contestants

 * Contestants are listed in order of their first appearance, not including the unaired pilot.

Season 6A
Hải Vũ ($5,000 - * see trivia) Lã Minh Khánh ($50,000 - Lost on $150,000) Trần Thanh Vinh ($50,000 - Lost on $75,000) Nguyễn Ngọc Đức ($25,000) Hải Vũ ($150,000) Phạm Đức Lương ($1,000,000) Lưu Đức Khôi ($50,000 - Lost on $250,000) Trần Mạnh Cường ($50,000 - Lost on $150,000 - ~ see trivia) Vũ Hữu Lượng ($10,000 - continued) Vũ Hữu Lượng ($50,000 - Lost on $75,000) Nguyễn Như Quỳnh ($1,000 - Lost on $5,000) Nguyễn Đình Thương ($50,000 - Lost on $150,000) Nguyễn Huy ($1,000 - Lost on $50,000) Nguyễn Thành Luân ($50,000 - Lost on $75,000 - ~ see trivia) Nguyễn Thành Luân ($10,000 - Lost on $50,000) Trần Mạnh Cường ($350,000 - Lost on $1,000,000) (Safety net at $350,000) Đặng Hoàng Nam (at least $75,000 - Safety net at $75,000)
 * Episode 1 (May 28, 2021) - UEFA Champions League Edition
 * Episode 2 (June 11, 2021)
 * Episode 3 (June 17, 2021)
 * Episode 4 (June 25, 2021) - Second Chance Edition
 * Episode 5 (July 2, 2021)
 * Episode 6 (July 4, 2021)
 * Episode 7 (July 7, 2021)
 * Episode 8 (July 11, 2021)
 * Episode 9 (July 14, 2021)
 * Episode 10 (July 17, 2021)
 * Episode 11 (July 19, 2021) - 1st Anniversary Special
 * Unaired Pilot

Season 6B
Phùn Thị Hà (₫500 - Lost on ₫1,500) Nguyễn Xuân Tùng (₫4,000 - Lost on ₫6,000) Bùi Quang Trung (₫4,000 - Lost on ₫8,000) Nguyễn Văn Anh (₫4,000 - Lost on ₫8,000)
 * Episode 12 (August 1, 2021) - COVID-19 Special (1)
 * Episode 13 (August 8, 2021) - COVID-19 Special (2)
 * Episode 14 (August 15, 2021) - COVID-19 Special (3)

Full Runs
For full runs for each contestant this season, see Runs of Who Wants to Be the First? (Season 5).

Trivia

 * On June 1, 2021, it was teased by the host that there are 9 new contestants in this season. The registrations for the show were conducted through Google Forms.
 * This was the first season to take place even though the current Hot Seat season has not ended, this was due to the UEFA Champions League Edition special must be broadcasted a day before the UEFA Champion League final matchup for the 2020-21 season, which involved Manchester City and Chelsea.
 * During the first episode:
 * In a rare occurrence, after Lã Minh Khánh's 8th question, the "Phone-a-Friend" lifeline in the money tree was crossed out although it was not used yet. This was fixed in a few seconds by duplicating a "Phone-a-Friend" lifeline graphic to cover the one that has been crossed out, however it was not fully covered as the crossed out graphic still can be seen behind. After Minh Khánh used the "Phone-a-Friend" lifeline on the 11th question and got it right, the duplicated graphic of the "Phone-a-Friend" lifeline was not removed for no apparent reason, nor being crossed out.
 * Tagged contestants:
 * (*) indicates contestants who were invited for Second Chance Edition.
 * (~) indicates contestants who were invited for 1st Anniversary Special.
 * The 3rd episode of the season was originally scheduled to air on June 18, 2021. It was then re-scheduled to June 17, 2021, a day earlier than expected.
 * This also applies to the 5th episode. It was originally scheduled to air on July 3, 2021, however it was suddenly re-scheduled to July 2, 2021, once again a day earlier than expected.
 * After the 4th episode aired, some viewers have mistakenly believed that Tô Minh Nhật, who is the host of Cùng là Tỷ Phú have guest hosted the show, although Nguyễn Ngọc Đức was already credited as the guest host for that episode. On the day after that episode aired, the main host of the show clarified it in the commands section, proving that Nguyễn Ngọc Đức was the real guest host of the episode, and stating that he will return to host the show starting on the next episode.
 * An unaired pilot was filmed somewhere around early-July 2021. It was themed 1st Anniversary Special with Nguyễn Ngọc Đức as guest host, while the main host, Đặng Hoàng Nam as contestant at that time.
 * Nguyễn Như Quỳnh is the first female contestant to pass the first milestone, and is the best result for a female contestant so far.
 * During the COVID-19 special, all money won were used to support the vaccine fund, COVID-19 prevention in Vietnam.

Videos

 * Season 6A
 * Trailer (UEFA Champions League Edition)
 * Episode 1
 * Episode 2
 * Episode 3
 * Episode 4
 * Episode 5
 * Episode 6
 * Episode 7
 * Episode 8
 * Episode 9
 * Episode 10
 * Episode 11


 * Season 6B
 * Episode 12
 * Teaser
 * Episode 13