Zhang Xiaoman had always been quite unclear about the concept of "friendly units."
The first time he encountered this term was when he drew the Sword Formation Skill.
For example, his Invincible Skill, Mountain River Suppression, mentioned in its description:
Grants the effect of Transformation State to "friendly units" within a certain range.
At that time, Zhang Xiaoman was puzzled about what exactly a friendly unit meant. He guessed it might refer to "human targets" or "targets he regarded as teammates."
Because he was busy with other things, Zhang Xiaoman never had the time to explore this issue.
It wasn't until now, with the various changes brought about after activating the gang, that he formed a brand new guess in his heart.
Friendly units very likely referred to members of the Star Alliance gang or people bearing the mark of the Eye of the Starry Sky!
So, besides Zhang Xiaoman, whose hand bears this mark?
The answer is—
His mom!