Power of S Mark

There was nothing on their right arm.

"Tsk, you lot. Look at your left arm."

The third elder shook his head and clicked his tongue before telling them about the arm they were supposed to see.

"Ah."

Wei Bin, the youngest of the group called out as he was the first to check the lower side of his left arm.

There was a red S on his left arm. The others also looked at their arms and saw a red S on their arm. 

The symbol S on their arm wasn't too big. They were just 3 inches long and 2 inches wide.

'Hmm. They look like tattoos.'

Zhao Luo looked at the red S on their arms and wondered. 

Then he turned his arm around and gazed at his arm. 

"A crimson S."

Zhao Luo said as the symbol on his arm was 5 inches long and 3 inches wide. It looked like someone had used their calligraphy skills on Zhao Luo's arm with their brush that had crimson ink on it.

"Are these S for sunflower?"