Pentagon has always worked hard in their 4 years by releasing 3 or 4 albums per year, releasing solo songs on various platforms, and participating in different shows where they showcased their talents. But 2021 is a year that stands out. This year, their schedule has been more packed than ever before.

January

The year started with Pentagon promoting a special digital single Eternal Flame which was first performed on Pentagon's online concert as a gift for fans.

During that period, Hui also promoted with SuperFive (a trot group he is a part of).
Wooseok was cast in a web drama, "Fling at Convenience Store."

Shinwon and Kino joined Day6's "Kiss the Radio" and became hosts for Dalkira.

Even if Jinho is currently serving in the military, he released a cover song for the fans.

A web drama, Phoenix 2020, starring Hongseok, was released.

Pentagon released an OST Honey Drop for a web drama Replay.

February

In February, Yanan started releasing his own cover series SING-NEMATIC where he covers drama OSTs (1 cover every 3 months).

Yanan participated in MBC Show Korean Foreigners.

Kino and Wooseok covered BTS's Idol on M Countdown.

Yeoone released his 5th solo song, Begin Again.

Yeoone and Wooseok starred in a web drama called Nickname Solip, where all of Pentagon made a cameo.

On the last day of February, Hui and Shinwon officially released their song WTH, which was first performed at their online concert.

March
Yanan, Yuto, and Wooseok guessed in HUYA Super Idol League.
Hui and Shinwon were guests at Meets 고꾸남.
Shinwon organized an escape room for the rest of the members.
Shinwon and Wooseok were models for Seoul Fashion Week.

Pentagon released their new 11th mini album with title track DO or NOT, which had 4 different versions in 4 different languages (Korean, English, Chinese and Japanese).

April
Hongseok started a new workout show TABATA.
Pentagon was one of the groups that participated in Idol Challenge.
Shinwon guested on Mdromeda Studio 'Haejangnim'!
Pentagon became brand ambassadors for Tipco juice.

May
Hongseok was cast in a web drama Blue Birthday.
Yuto released Wounds, a self-written and composed song on his Soundcloud https://soundcloud.app.goo.gl/... was a guest on Adobe Korea.
Pentagon performed at 2021 Busan One Asia Festival.
Yanan's drama Use of My Talent aired on Netflix.
Hongseok's drama Move to Heaven aired on Netflix.
Wooseok was one of the hosts on a shopping live broadcast where he sold paprika.
Yeoone started his new ASMR series.
Shinwon and Kino were special MCs on mcountdown.
Kino released his 2nd solo song under UNORDINARY SUNDAY called Sunflower.

June
Pentagon released commercial songs for Tipco.

Pentagon collaborated with CHARM's a clothing brand and released self-designed clothing.
Even though Hui is serving in the military, he released an OST, Imagine.
Kino made a collaboration song with DAVII called Don't play me Love.

It is just the halfway point of 2021, and Pentagon has worked so hard and released so much content for the fans. 

This also proves that there is only one thing Pentagon can't do, and that is rest.